Balance Martial Arts and Gaming

Creature — Spirit

Defender (This creature can't attack.) Whenever this creature blocks a creature, return that creature to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

Creature — Spirit

Whenever you cast a Spirit or Arcane spell, target creature can't block this turn.

Creature — Spirit

Whenever you cast a Spirit or Arcane spell, this creature gets +1/+1 until end of turn.

Creature — Human Druid

{T}: Add an amount of {G} equal to your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Enchantment — Aura

Enchant creature When this Aura enters, draw a card. Enchanted creature has "{T}: Add one mana of any color."

Creature — Snake Warrior

Whenever this creature deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Legendary Creature — Human Warrior Ally

Vigilance When Katara enters, create a 1/1 white Ally creature token. Waterbend {X}: Creatures you control have base power and toughness X/X until end of turn. X can't be 0. Activate only during your turn. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}.)

Creature — Kavu

Kicker {4} (You may pay an additional {4} as you cast this spell.) This creature can't block. If this creature was kicked, it enters with a +1/+1 counter on it.

Land

This land enters tapped. When this land enters, you gain 1 life. {T}: Add {R} or {G}.

Creature — Ogre Warrior

{0}: Attach target Equipment you control to this creature. Activate only as a sorcery.

Artifact Creature — Chimera

When this creature enters, empower Jace 2. (Put two loyalty counters on a Jace token you control. If you don't control one, first create a blue Jace planeswalker token with "[−1]: Surveil 1" and "[−3]: Draw a card.")

Creature — Human Warrior

Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) When this creature enters or leaves the battlefield, it deals 1 damage to target player or planeswalker.

Creature — Human Barbarian

Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control.

Land

{T}: Add {C}. {X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

Creature — Rabbit Beast

First strike At the beginning of your upkeep, if your opponents control no creatures, this creature deals 4 damage to you.

Enchantment

Landfall — Whenever a land you control enters, you may put a quest counter on this enchantment. Remove three quest counters from this enchantment and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.