Terracrux

Enchantment

Flash Each creature you control that's a Wolf or a Werewolf gets +1/+1 and has trample.

Creature — Goblin Mercenary

Start your engines! Other Goblins you control have haste. At the beginning of combat on your turn, create a 1/1 red Goblin creature token. That token attacks this combat if able. Max speed — {T}: Add {R} for each Goblin you control.

Creature — Dinosaur

Vigilance When this creature enters, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Legendary Planeswalker — Huatli

+1: Put a loyalty counter on Huatli for each creature you control. −1: Target creature gets +X/+X until end of turn, where X is the number of creatures you control. −8: You get an emblem with "Whenever a creature you control enters, you may draw a card."

Legendary Planeswalker — Huatli

+2: You gain life equal to the greatest power among creatures you control. 0: Create a 3/3 green Dinosaur creature token with trample. −X: Huatli deals X damage divided as you choose among any number of target creatures. Creatures dealt damage this way can't block this turn.

Legendary Planeswalker — Huatli

Each creature you control assigns combat damage equal to its toughness rather than its power. −3: You gain life equal to the greatest toughness among creatures you control.

Creature — Dinosaur

Ward {2} At the beginning of your first main phase, add {G}{G}.

Sorcery

Choose one — • Destroy target artifact. • Destroy target enchantment. • Destroy target artifact and target enchantment.

Creature — Merfolk Pirate

Flash If an opponent would draw a card except the first one they draw in each of their draw steps, instead you create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Creature — Kraken Horror

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Creature — Human Druid

{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

Instant

Put a +1/+1 counter on target creature. Morbid — Put three +1/+1 counters on that creature instead if a creature died this turn.

Creature — Hydra

This creature enters with X +1/+1 counters on it. This creature can't be blocked by more than one creature. Whenever this creature is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

Creature — Cat

Cats you control have protection from Rats. (They can't be blocked, targeted, or dealt damage by Rats.) At the beginning of your end step, target opponent creates a 1/1 black Rat creature token with deathtouch. Whenever a Rat dies, put a +1/+1 counter on each Cat you control.

Creature — Horror

Trample When this creature enters, target opponent creates two 3/3 green Centaur creature tokens with protection from black.

Creature — Nightmare

Menace When this creature enters, target opponent puts a deathtouch counter on a creature they control.

Creature — Spirit

This creature can't be blocked. When this creature enters, target opponent creates five 1/1 red Goblin creature tokens.

Creature — Human

When this creature dies, create a 1/1 white Soldier creature token with lifelink.

Creature — Sliver

All Sliver creatures have provoke. (Whenever a Sliver attacks, its controller may have target creature defending player controls untap and block it if able.)

Sorcery

Put a +1/+1 counter on target creature you control. Then that creature deals damage equal to its power to target creature you don't control.

Instant

Choose target creature you control. Whenever that creature deals combat damage to a player or planeswalker this turn, draw that many cards.

Sorcery

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Sorcery

Hurricane deals X damage to each creature with flying and each player.

Creature — Faerie

Flying, lifelink Creatures entering or dying don't cause abilities to trigger.

Creature — Hippogriff

Flash Flying Creatures entering don't cause abilities to trigger.

Creature — Hydra

Whenever this creature deals combat damage to an opponent, it deals that much damage to each other opponent.

Enchantment — Aura

Enchant creature When this Aura enters, put a +1/+1 counter on enchanted creature. At the beginning of your upkeep, double the number of +1/+1 counters on enchanted creature.

Creature — Merfolk Wizard

{T}: Add {U}. Spend this mana only to cast an instant or sorcery spell. {1}, {T}: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell.

Legendary Creature — Elemental Villain

Whenever you cast a blue spell, if Hydro-Man is a creature, he gets +1/+1 until end of turn. At the beginning of your end step, untap Hydro-Man. Until your next turn, he becomes a land and gains "{T}: Add {U}." (He's not a creature during that time.)

Instant

Choose one — • Counter target spell if it's red. • Destroy target permanent if it's red.

Creature — Jellyfish Hydra Beast

When you cast this spell, you gain half X life and draw half X cards. Round down each time. Flying, trample This creature enters with X +1/+1 counters on it.

Enchantment — Aura

Enchant creature Enchanted creature gets +1/+1 and has first strike. Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Sorcery

Target player discards two cards at random.

Creature — Dragon

Flying, haste You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)

Enchantment Creature — Siren

Bestow {5}{U}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.) Flying You control enchanted creature. Enchanted creature gets +1/+1 and has flying.

Creature — Specter

Flying Whenever this creature deals damage to an opponent, that player discards a card at random.

Creature — Human Scout

When this creature enters, untap target creature.

Instant

Creatures your opponents control get -4/-0 until end of turn.