Marble March 1WRU
When ~ enters the battlefield, put two 3/3 colorless Golem artifact enchantment creatures onto the battlefield.
When ~ leaves the battlefield, exile two Golem creatures you control.
Minaldra's Matrix 3RR
Enchantment 2RR: Exile target instant or sorcery spell you control. At the beginning of your next upkeep, copy that spell twice. You may cast each of those copies without paying their mana costs.
Creature - Warrior
Whenever counters on a creature cause a creature's toughness to decrease, each player loses that much life.
Whenever counters on a creature cause a creature's toughness to increase, each player gains that much life.
Power of the Mind
Enchantment — Aura
When ~ enters the battlefield, put a +1/+1 counter on enchanted creature.
Whenever one or more +1/+1 counters are placed on enchanted creature, draw a card.
Enchantment - Aura
When ~ enters the battlefield, put two +1/+1 counters on enchanted creature.
Remove a +1/+1 counter enchanted creature: Target creature gets +2/+2 until end of turn.
Kicker-Sacrifice a permanent.
Target player discards a card at random. If Mindstabbing Agony was kicked, that player loses life equal to the discarded card's converted mana cost.