Halo Fountain [Streets of New Capenna Prerelease Promos] Human Knight you may reveal a Lightning

you may reveal a Lightning card from your hand

" —Hekaton

Whenever Dracona Optimai attacks a hero

the plane effects of the Unknown event don't apply to this game for as long as it remains on the battlefield

create 3 Spectral Shield tokens

Halo Fountain [Streets of New Capenna Prerelease Promos] Human Knight you may reveal a LightningSet: Streets of New Capenna Prerelease Promos Type: Artifact Rarity: Mythic Cost: {2}{W} {W}, {T}, Untap a tapped creature you control: Create a 1 1 green and white Citizen creature token. {W}{W}, {T}, Untap two tapped creatures you control: Draw a card. {W}{W}{W}{W}{W}, {T}, Untap fifteen tapped creatures you control: You win the game.