Gandalf the WhiteFlash You may cast legendary spells and artifact spells as though they had flash. If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Whenever Calix or an enchanted creature you control deals combat damage to a player

it deals that much damage to each creature that player controls

Target creature gets -5/-5 until end of turn

you may exile a green card from your hand rather than pay this spell's mana cost

Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield

: Target creature gains protection from red until end of turn

put a -1/-1 counter on each creature target player controls

Each player shuffles their hand and graveyard into their library

where X is the number of descent counters on Descent into Avernus

You lose life equal to its mana value

As long as you have 30 or more life

If you control a commander as you cast this spell