At the beginning of each opponent's upkeep, that player may pay life equal to the number of pain counters they have plus 1. If they don't, look at their hand, choose a card from it, and exile that card. If they do, that player gets a pain counter.
You may cast cards exiled with Alehana, and mana of any type can be spent to cast them.

Flying
Whenever Irrlicht deals combat damage to a player, they reveal their hand and you choose a nonland card from it. Exile that card until your next turn.