Sirex, Ætherborn Horror

Firststrike, Lifelink, Haste
When Sirex, Aetherborn Horror enters the battlefield destroy target non-land permanent.
You gain {e} equal to the mana value.
{e}{e}{e}{e}{e}{e}, {t}: Destroy target non-land
permanent.
{2}{w}: Untap Sirex, Aetherborn Horror.