You and target player exchange control of the creature you each control with the highest converted mana cost. Then exchange control of artifacts the same way. If two or more permanents a player controls are tied for highest cost, their controller chooses one of them.

: Prevent the next 2 damage that would be dealt to target creature this turn.

Discard a card: If the discarded card was a land card, Land's Edge deals 2 damage to target player or planeswalker. Any player may activate this ability.

, Sacrifice Living Armor: Put X +0/+1 counters on target creature, where X is that creature's converted mana cost.

Rampage 1 (Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)

As an additional cost to cast this spell, sacrifice a creature.
Add X mana of any one color, where X is 1 plus the sacrificed creature's converted mana cost. Spend this mana only to cast creature spells.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
Protection from white

, : Choose a card name. Target opponent reveals X cards at random from their hand. Then that player discards all cards with that name revealed this way. Activate this ability only during your turn.

Flying
At the beginning of your upkeep, sacrifice Nicol Bolas unless you pay .
Whenever Nicol Bolas deals damage to an opponent, that player discards their hand.

, : Return target permanent you both own and control to your hand.

Flying, trample
At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay .

: Target player chooses a card name, then reveals the top card of their library. If that card has the chosen name, that player puts it into their hand. If it doesn't, the player puts it into their graveyard.

Primordial Ooze attacks each combat if able.
At the beginning of your upkeep, put a +1/+1 counter on Primordial Ooze. Then you may pay , where X is the number of +1/+1 counters on it. If you don't, tap Primordial Ooze and it deals X damage to you.

Enchant creature
When enchanted creature dies, return that card to its owner's hand. If that card is returned to its owner's hand this way, you may pay . If you do, return Puppet Master to its owner's hand.

Vigilance
Rabid Wombat gets +2/+2 for each Aura attached to it.

: Prevent the next 1 damage that would be dealt to any target this turn. Return Rakalite to its owner's hand at the beginning of the next end step.

Discard X cards, then return a card from your graveyard to your hand for each card discarded this way. Exile Recall.

Counter target creature spell.

Protection from red