The reason being, you're getting your three cards from damaging each opponent, but you're probably also taking out hordes of tokens and utility creatures along the way, which is ultimately more impactful
As one of Magic's best spellslinger commanders, Anhelo, the Painter falls solidly into the latter camp, providing an easy way to copy your best spells
If that player casts another spell, it is assumed that each other player has also passed priority, which caused the first spell to resolve and the first player to receive priority again
This is especially useful in a strategy where your best pieces may become obvious targets
Theres truly nothing this Gondorian King cant do
(A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay