Xenohk, Heart of Avarice

Flying

Whenever a player casts a spell, each other player loses 1 life and manifests dread. (Each player looks at the top two cards of their library, then puts one onto the battlefield face down as
a 2/2 creature and the other into their graveyard. They can
be turned face up any time for their mana cost.)

Descend 6 —As long as there are six or more permanents
in your graveyard, creatures your opponents control enters tapped unless their control pays 2 life. If they do, you g