Planar Outburst is a rare Sorcery card from New Capenna Commander (NCC), collector number 209. Current market price: $0.35, TCGplayer market prices via Scryfall.
Destroy all nonland creatures. Awaken 4—{5}{W}{W}{W} (If you cast this spell for {5}{W}{W}{W}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)