Giant Mana Cake is a common Stickers card from Unfinity Sticker Sheets (SUNF), collector number 25. Current market price: $0.18, TCGplayer market prices via Scryfall.
{TK}{TK} — When this permanent leaves the battlefield, create two Food tokens. (They're artifacts with "{2}, {T}, Sacrifice this artifact: You gain 3 life.") {TK}{TK}{TK}{TK} — When this permanent dies, destroy target nonland permanent. {TK}{TK} — 3/3 {TK}{TK}{TK} — 6/2