The Game Cave

Creature — Troll Shaman

Hexproof (This creature can't be the target of spells or abilities your opponents control.) {1}{G}: Regenerate this creature.

Sorcery

Domain — Until end of turn, creatures you control gain trample and get +1/+1 for each basic land type among lands you control.

Legendary Creature — Dryad

Other creatures you control get +1/+1. When Trostani enters, create two 1/1 white Soldier creature tokens with lifelink. At the beginning of your end step, each player gains control of all creatures they own.

Creature — Elf Shaman

When this creature enters, create a 2/2 white Knight creature token with vigilance, a 3/3 green Centaur creature token, and a 4/4 green Rhino creature token with trample.

Creature — Human Cleric

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

Enchantment

Creatures you control have double strike and lifelink.

Creature — Merfolk Rogue

As this creature enters, choose a player. This creature has protection from the chosen player.

Instant

Target artifact or creature becomes a copy of another target artifact or creature.

Creature — Beast

Mutate {3}{G/U}{G/U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, create a 3/3 green Beast creature token.

Sorcery

Create a 3/3 green Elephant creature token. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Artifact

When this artifact enters, draw a card. Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

Sorcery

Players play a subgame starting at 5 life and with up to three permanent cards with different names from their main-game library on the battlefield. As the subgame ends, the winner chooses one of the cards they put onto the battlefield as the subgame began and puts it onto the battlefield rather than shuffling it into their library.

Legendary Creature — Human Wizard

Flying {R}{G}, {T}: Target creature gets +2/+2 until end of turn.

Snow Sorcery

Tundra Fumarole deals 4 damage to target creature or planeswalker. Add {C} for each {S} spent to cast this spell. Until end of turn, you don't lose this mana as steps and phases end. ({S} is mana from a snow source.)

Creature — Elemental

Whenever a land enters under an opponent's control, if that player had another land enter the battlefield under their control this turn, this creature deals 3 damage to that player.

Enchantment

When this enchantment enters, for each player, put a contested counter on target land that player controls. Whenever a creature deals combat damage to a player, if that player controls one or more lands with contested counters on them, that creature's controller gains control of one of those lands of their choice and untaps it.

Instant

Choose artifact, creature, or land. Tap all untapped permanents of the chosen type target player controls, or untap all tapped permanents of that type that player controls.

Instant // Instant

Creature — Mutant Ninja Fox

Sneak {2}{W}{B} (You may cast this spell for {2}{W}{B} if you also return an unblocked attacker you control to hand during the declare blockers step. It enters tapped and attacking.) When this creature enters, choose target creature an opponent controls. Exile that creature until this creature leaves the battlefield. If this creature's sneak cost was paid, instead exile the chosen creature.

Instant

All combat damage that would be dealt to you this turn is dealt to target attacking creature instead.

Enchantment

Flash Turtles you control get +2/+2.

Instant

Search your library and/or outside the game for exactly four legendary creature cards you own with different names, then reveal those cards. An opponent chooses two of them. Put the chosen cards into your hand and shuffle the rest into your library.

Sorcery

Return all creatures to their owners' hands. Each player may shuffle their hand and graveyard into their library, then each player who does draws seven cards. Exile Turtles in Time.

Artifact — Vehicle

Whenever this Vehicle attacks, put a +1/+1 counter on target creature that crewed it this turn. Then if that creature is a Mutant, Ninja, or Turtle, double the number of +1/+1 counters on it. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Instant

You may tap or untap target artifact, creature, or land.

Sorcery

You may cast this spell as though it had flash if you pay {2} more to cast it. (You may cast it any time you could cast an instant.) Each player returns all creature cards from their graveyard to the battlefield.

Creature — Angel

Flying, vigilance When this creature enters, return to your hand all cards in your graveyard that were put there from the battlefield this turn. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Creature — Dragon

Flying If a source you control would deal damage to an opponent or a permanent an opponent controls, it deals double that damage instead.

Enchantment — Aura

Enchant creature Enchanted creature gets +3/-1.

Instant

Switch target creature's power and toughness until end of turn. Draw a card.

Creature — Giant Warrior

Whenever this creature attacks, flip two coins. If both coins come up heads, this creature gains double strike until end of turn. If both coins come up tails, this creature gains menace until end of turn.

Creature — Dragon

Flying, menace, haste Whenever this creature attacks, draw two cards.

Creature — Tyranid

Flying, ward {4} Shrieking Gargoyles — Whenever this creature or another Tyranid you control deals combat damage to a player, create a 1/1 blue Tyranid Gargoyle creature token with flying.

Creature — Demon

Flying, trample As this creature enters, choose another creature you control. The chosen creature gets +3/+3 and has flying. When this creature leaves the battlefield, sacrifice the chosen creature.

Creature — Dragon

Flying When this creature enters, it deals 4 damage to any target. {R}: This creature gets +1/+0 until end of turn.

Creature — Dragon

Surge {3}{R}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.) Flying When this creature enters, if its surge cost was paid, it deals 3 damage to any target.

Legendary Creature — Dinosaur Warrior

Legendary Planeswalker — Tyvar

Elves you control have "{T}: Add {B}." +1: Put a +1/+1 counter on up to one target Elf. Untap it. It gains deathtouch until end of turn. 0: Create a 1/1 green Elf Warrior creature token. −6: You get an emblem with "Whenever you cast an Elf spell, it gains haste until end of turn and you draw two cards."

Artifact

If a player would draw a card, that player exiles that card face up instead. Each player may play lands and cast spells from among cards they exiled with this artifact this turn.

Legendary Planeswalker — Ugin

When you cast this spell, exile up to one target permanent that's one or more colors. Whenever you cast a colorless spell, exile up to one target permanent that's one or more colors. +2: You gain 3 life and draw a card. 0: Add {C}{C}{C}. −11: Search your library for any number of colorless nonland cards, exile them, then shuffle. Until end of turn, you may cast those cards without paying their mana costs.

Creature — Spirit Monk

This creature enters with X +1/+1 counters on it. If damage would be dealt to this creature while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from this creature.

Legendary Artifact

If a player would begin an extra turn, that player skips that turn instead. If Ugin's Nexus would be put into a graveyard from the battlefield, instead exile it and take an extra turn after this one.

Legendary Planeswalker — Ugin

+2: Ugin deals 3 damage to any target. −X: Exile each permanent with mana value X or less that's one or more colors. −10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Legendary Creature — Whale Wolf

Partner with Cazur, Ruthless Stalker (When this creature enters, target player may put Cazur into their hand from their library, then shuffle.) Ukkima can't be blocked. When Ukkima leaves the battlefield, it deals X damage to target player and you gain X life, where X is its power.