Gisela, Blade of Goldnight [Avacyn Restored] Guilds of Ravnica Criosphinx Sovereign or another Sphinx

Criosphinx Sovereign or another Sphinx enters the battlefield under your control

no triumph without sacrifice

You choose a noncreature

Locus of Mana gets +1/+1 for each unspent green mana you have

If an instant or sorcery source would deal 3 or more damage to you

Gisela, Blade of Goldnight [Avacyn Restored] Guilds of Ravnica Criosphinx Sovereign or another SphinxSet: Avacyn Restored Type: Legendary Creature Angel Rarity: Mythic Cost: {4}{R}{W}{W} Flying, first strike If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead. If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.