Desolation Giant is a special Creature — Giant card from Time Spiral Timeshifted (TSB), collector number 57. Current market price: $0.30 (foil $0.85), TCGplayer market prices via Scryfall.
Kicker {W}{W} (You may pay an additional {W}{W} as you cast this spell.) When this creature enters, destroy all other creatures you control. If it was kicked, destroy all other creatures instead.