Mizzix's Mastery [Mystery Booster] Genesis Impact create a 1/1 white Cat

create a 1/1 white Cat Soldier creature token with vigilance that's attacking

Set: Sun & Moon: Team Up Type: Colorless Rarity: Secret Rare Retreat cost: Colorless

Set: Sword & Shield: Battle Styles Type: Fighting Rarity: Secret Rare Retreat cost: Colorless

When Karrthus

where X is the number of lands you control at that time

Mizzix's Mastery [Mystery Booster] Genesis Impact create a 1/1 white CatSet: Mystery Booster Type: Sorcery Rarity: Rare Cost: {3}{R} Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery. Overload {5}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")