Dubious Challenge

Return X target cards from your graveyard to your hand. Exile Wildest Dreams.

Flying Whenever this creature or another creature you control enters, you get E (an energy counter). Whenever this creature attacks, you may pay EE. If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.

Flying, vigilance, lifelink Fabricate 2 (When this creature enters, put two +1/+1 counters on it or create two 1/1 colorless Servo artifact creature tokens.) Other creatures you control get +1/+1.

Creatures your opponents control enter tapped. Whenever a creature an opponent controls enters, you gain 1 life.

Creatures your opponents control enter tapped. Whenever a creature an opponent controls enters, you gain 1 life.

Enchant creature you don't control Enchanted creature can't attack. Whenever an opponent casts a spell, if it has a single target, change the target to enchanted creature if able.

Vigilance When this creature enters, each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest.

Destroy all creatures. You gain 1 life for each creature destroyed this way.