Aphelios, Exalted

champion unit

When you attach an Equipment to me, choose one that hasn't been chosen this turn — - Ready 2 runes. - Channel 1 rune exhausted. - [Buff] a friendly unit.

Rulings

• Aphelios, Exalted has an ability that triggers when I attach an Equipment to him and tells me to “choose one that hasn’t been chosen this turn.” If I attach Svellsongur to him, does he have the second copy of his ability in time for both to trigger? And do I have to choose different options?