Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] 18 Pyromaster deals 1 damage to

Pyromaster deals 1 damage to target player or planeswalker and 1 damage to up to one target creature that player or that planeswalker's controller controls

equip this card to it

and you may spend mana as though it were mana of any type to cast those spells

If this card is Special Summoned this way

Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] 18 Pyromaster deals 1 damage toSet: Mystery Booster Playtest Cards Type: Legendary Creature Dragon Sliver Rarity: Rare Cost: {2}{U}{U}{R}{R} Slivers you control have flying and "Whenever you draw a card, this creature deals 1 damage to any target" and "{T}: Draw a card." (^17S)180 = (Z >)90