Jetpack Death Seltzer is a common Stickers card from Unfinity Sticker Sheets (SUNF), collector number 20. Current market price: $0.17, TCGplayer market prices via Scryfall.
{TK}{TK} — Trample {TK}{TK}{TK} — {3}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) {TK}{TK}{TK} — 2/7 {TK}{TK}{TK}{TK} — 6/5