Leonardo da Vinci (Foil Etched) [Assassin's Creed] Phyrexian Avatar the player discards it unless

the player discards it unless they pay life equal to its converted mana cost

Set: Portal Second Age Type: Sorcery Rarity: Common Cost: {1}{W}{W} Creatures you control get +2/+2 until end of turn

Set: Wilds of Eldraine Commander Type: Artifact Creature — Knight Rarity: Rare Cost: {1}{G} As long as Timber Paladin is enchanted by exactly one Aura

Timey-Wimey — 7: Time travel three times

Leonardo da Vinci (Foil Etched) [Assassin's Creed] Phyrexian Avatar the player discards it unlessSet: Assassin's Creed Type: Legendary Creature Human Artificer Rarity: Mythic Cost: {2}{U} {3}{U}{U}: Until end of turn, Thopters you control have base power and toughness X X, where X is the number of cards in your hand. {2}{U}, {T}: Draw a card, then discard a card. If the discarded card was an artifact card, exile it from your graveyard. If you do, create a token that's a copy of it, except it's a 0 2 Thopter artifact creature with flying in