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.
Artista: Mark Tedin
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.
Elvish Skysweeper
, Sacrifice a creature: Destroy target creature with flying.
Dark Heart of the Wood
Sacrifice a Forest: You gain 3 life.
Vinelasher Kudzu
Whenever a land enters the battlefield under your control, put a +1/+1 counter on Vinelasher Kudzu.
Enormous Baloth
Enormous Baloth
Temporal Adept
, : Return target permanent to its owner’s hand.
Enormous Baloth
Defense Grid
Each spell costs more to cast except during its controller’s turn.
Temporal Adept
, : Return target permanent to its owner’s hand.
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.
Sol Ring
: Add .
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.
Deathcurse Ogre
When Deathcurse Ogre dies, each player loses 3 life.
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.
Kami of Ancient Law
Sacrifice Kami of Ancient Law: Destroy target enchantment.
Kami of Twisted Reflection
Sacrifice Kami of Twisted Reflection: Return target creature you control to its owner’s hand.