Flying

Each player can't cast more than one spell each turn.

Nonbasic lands your opponents control enter the battlefield tapped.

This spell can't be countered.

Counter target noncreature spell.

This spell can't be countered.

Counter target noncreature spell.

This spell costs {2} less to cast if it targets a blue spell.

Counter target spell unless its controller pays {3}.

This spell costs {2} less to cast if it targets a blue spell.

Counter target spell unless its controller pays {3}.

Menace

Players can't gain life.

Whenever another creature enters the battlefield, Rampaging Ferocidon deals 1 damage to that creature's controller.

This spell can't be countered.

Rending Volley deals 4 damage to target white or blue creature.

This spell can't be countered.

Rending Volley deals 4 damage to target white or blue creature.

This spell can't be countered.

Rending Volley deals 4 damage to target white or blue creature.

When Rest in Peace enters the battlefield, exile all graveyards.

If a card or token would be put into a graveyard from anywhere, exile it instead.

When Rest in Peace enters the battlefield, exile all graveyards.

If a card or token would be put into a graveyard from anywhere, exile it instead.

This spell can't be countered.

Destroy all creatures.

When Temporary Lockdown enters the battlefield, exile each nonland permanent with mana value 2 or less until Temporary Lockdown leaves the battlefield.

This spell can't be countered.

Target opponent reveals their hand. Exile all noncreature, nonland cards from that player's hand and graveyard.

Companion -- Your starting deck contains at least twenty cards more than the minimum deck size. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

Flying

When Yorion enters the battlefield, exile any number of other nonland permanents you own and control. Return those cards to the battlefield at the beginning of the next end step.