Soulless Jailer

Permanent cards in graveyards can't enter the battlefield.
Players can't cast noncreature spells from graveyards or exile.

Blood Moon

Winter Moon

Players can't untap more than one nonbasic land during their untap steps.

Magus of the Moon

Alexios, Deimos of Kosmos

Trample
Alexios, Deimos of Kosmos attacks each combat if able, can't be sacrificed, and can't attack its owner.
At the beginning of each player's upkeep, that player gains control of Alexios, untaps it, and puts a +1/+1 counter on it. It gains haste until end of turn.

Silent Arbiter

No more than one creature can attack each combat.
No more than one creature can block each combat.