Talk:Perfected Deity of Eon, The Endruler Dragon/@comment-44389947-20191112030023/@comment-11372432-20191112041801

Soulguard is an optional ability that the player can choose not to use. It just doesn’t come up much because it’s rare for a player to not choose to do it. As “time is stopped”, the player cannot choose to do it and thus the monster is sent to drop.

This makes all triggered abilities (ACT and “when X happens”), effectively nullified (and yes, this includes those that say they can’t be nullified). This applies to any of them including optional, mandatory, keyword, and non-keyword. All that remains are continuous abilities, which are unaffected.

A nice little saving grace is that lifelink is a triggered ability, at the very least.