When you equip Svellsongur to Irelia, will the +1 for choosing Irelia trigger twice (since Svellsongur doubles her text)?

Ruling: No, Irelia's trigger will not happen twice. Irelia triggers when she is chosen/targeted during the finalization of the equip ability, but Svellsongur only becomes attached to her when the equip ability resolves, which happens after finalization. Since the doubling effect isn't active yet when Irelia triggers, she only gets +1 once.

Sequence:

• When you play the equip ability, you finalize it by choosing/targeting Irelia
• Irelia triggers when chosen/targeted during finalization
• The equip ability is placed on the chain
• The equip ability resolves, attaching Svellsongur to Irelia
• Svellsongur's text-doubling effect becomes active only after it's attached

Nuances:

• Finalization (making choices, paying costs, putting the ability on the chain) is distinct from resolution
• Effects that trigger on being chosen/targeted happen during finalization, not resolution
• This means effects like Dreaming Tree's draw happen even if the spell is denied, because the trigger occurs during finalization before the spell can be countered