Experiment Kraj

Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it.
: Put a +1/+1 counter on target creature.

Celestial Ancient

Flying
Whenever you cast an enchantment spell, put a +1/+1 counter on each creature you control.

Plague Boiler

At the beginning of your upkeep, put a plague counter on Plague Boiler.
: Put a plague counter on Plague Boiler or remove a plague counter from it.
When Plague Boiler has three or more plague counters on it, sacrifice it. If you do, destroy all nonland permanents.

Vinelasher Kudzu

Whenever a land enters the battlefield under your control, put a +1/+1 counter on Vinelasher Kudzu.

Defense Grid

Each spell costs more to cast except during its controller’s turn.

Oni of Wild Places

Haste
At the beginning of your upkeep, return a red creature you control to its owner’s hand.

Dreamcatcher

Whenever you cast a Spirit or Arcane spell, you may sacrifice Dreamcatcher. If you do, draw a card.

Ideas Unbound

Draw three cards. Discard three cards at the beginning of the next end step.

Terashi’s Grasp

Destroy target artifact or enchantment. You gain life equal to its converted mana cost.

Circle of Protection: Red

: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Fireball

This spell costs more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Necro-Impotence

Skip your untap step.
At the beginning of your upkeep, you may pay X life. If you do, untap X permanents.
Pay ½ life: Exile the top card of your library face down. Put that card into your hand at the beginning of the next end step.

Lava Spike

Lava Spike deals 3 damage to target player or planeswalker.

Cage of Hands

Enchant creature
Enchanted creature can’t attack or block.
: Return Cage of Hands to its owner’s hand.