Sigil of the Empty Throne
Conflux — rare
Enchantment
Sigil of the Empty Throne rulings:
2021-03-19: An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger, but after targets have been chosen for that spell. It resolves even if that spell is countered.
2021-03-19: Because it’s not on the battlefield yet, casting Sigil of the Empty Throne won’t cause its own ability to trigger.