Alecto Grayjoy, Raging Wraith

Menace
When Alecto deals combat damage to a player or
dies, she deals 3 damage to target creature.
Sacrifice 5 creatures: Return Alecto from your graveyard to the battlefield. She gains indestructible until the end of turn. Then,
destroy all creatures. Activate only as a sorcery.
"Now YOU will burn!"