Arrow Volley Trap

If four or more creatures are attacking, you may pay rather than pay this spell’s mana cost.
Arrow Volley Trap deals 5 damage divided as you choose among any number of target attacking creatures.

Chandra Ablaze

+1: Discard a card. If a red card is discarded this way, Chandra Ablaze deals 4 damage to any target.
−2: Each player discards their hand, then draws three cards.
−7: Cast any number of red instant and/or sorcery cards from your graveyard without paying their mana costs.

The Hippodrome

All creatures get -5/-0.
Whenever you roll , you may destroy target creature if its power is 0 or less.

Hive Mind

Whenever a player casts an instant or sorcery spell, each other player copies that spell. Each of those players may choose new targets for their copy.

Lavalanche

Lavalanche deals X damage to target player or planeswalker and each creature that player or that planeswalker’s controller controls.

Slave of Bolas

Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Mayael’s Aria

At the beginning of your upkeep, put a +1/+1 counter on each creature you control if you control a creature with power 5 or greater. Then you gain 10 life if you control a creature with power 10 or greater. Then you win the game if you control a creature with power 20 or greater.

Matca Rioters

Domain — Matca Rioters’s power and toughness are each equal to the number of basic land types among lands you control.

Child of Alara

Trample
When Child of Alara dies, destroy all nonland permanents. They can’t be regenerated.

Kranioceros

: Kranioceros gets +0/+3 until end of turn.

Naya Battlemage

, : Target creature gets +2/+0 until end of turn.
, : Tap target creature.

Sunseed Nurturer

At the beginning of your end step, if you control a creature with power 5 or greater, you may gain 2 life.
: Add .

Ponder

Look at the top three cards of your library, then put them back in any order. You may shuffle your library.
Draw a card.