Activating the regeneration ability creates a replacement effect that acts like a shield, replacing the next time Spiritmonger would be destroyed that turn. This shield works against effects that try to destroy Spiritmonger or lethal damage that would be dealt to Spiritmonger.
2022-12-08 • wotc
Spiritmonger can regenerate even if it isn't in combat, it's already tapped, or it's undamaged.
2022-12-08 • wotc
You can activate the regeneration ability even if Spiritmonger isn't at risk of being destroyed.
2022-12-08 • wotc
Spiritmonger's last ability causes it to become only the chosen color. It will no longer be the colors it was previously.