Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] DP26 draw a card for each

draw a card for each +1/+1 counter on it

Set: EX: FireRed & LeafGreen Type: Psychic Rarity: Common Retreat cost: Colorless

and it can block creatures with flying

Set: Visions Type: Artifact Rarity: Rare Cost: {4} At the beginning of each player's draw step

Set: Pro Tour Collector Set Type: Creature — Specter Rarity: Uncommon Cost: {1}{B}{B} Flying

Sliv-Mizzet, Hivemind [Mystery Booster Playtest Cards] DP26 draw a card for eachSet: 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