Waves of Aggression [Eventide] Arena League 2000 Whenever a player casts a

Whenever a player casts a black spell

its controller adds an additional one mana of that color

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard

Set: Planechase Type: Sorcery Rarity: Rare Cost: {5}{R}{R}{R} Untap all creatures and gain control of them until end of turn

−11: Destroy up to six target nonland permanents

Waves of Aggression [Eventide] Arena League 2000 Whenever a player casts aSet: Eventide Type: Sorcery Rarity: Rare Cost: {3}{R W}{R W} Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)