In which scenarios can Immortal Phoenix (OGN-037) be played from trash after being destroyed?

Ruling: Immortal Phoenix can be played from trash when destroyed by a spell (including your own spells), but not when destroyed by unit damage (Challenge, Combat) or by stat reduction effects.

Sequence:

• If a spell deals damage that destroys Phoenix, it can be played from trash
• If unit damage (Challenge/Combat) destroys Phoenix, it cannot be played from trash
• If a spell deals partial damage then unit damage finishes it, it cannot be played from trash
• If a spell deals partial damage then another spell finishes it, it can be played from trash

Nuances:

• Vengeance counts as a spell for this purpose (can revive)
• Challenge and Last Breath damage is dealt by units, not spells (cannot revive)
• Stat reduction (reducing Might) that causes destruction during cleanup does not count as spell damage (cannot revive)
• This applies whether the stat reduction comes from a spell or gear
• Phoenix can see itself being killed by your own spells and still trigger
• If Phoenix is already on board and you kill another Phoenix with your spell (like Flurry of Blades dealing final damage after Challenge damage), it should trigger