Will-o'-the-Wisp [Limited Edition Alpha] Saheeli and other players can't gain

and other players can't gain control of them

Exile Recall

put all but one of them on the bottom of your library in a random order

They tunneled

When Treachery enters the battlefield

Will-o'-the-Wisp [Limited Edition Alpha] Saheeli and other players can't gainSet: Limited Edition Alpha Type: Creature Spirit Rarity: Rare Cost: {B} Flying (This creature can't be blocked except by creatures with flying or reach.) {B}: Regenerate Will o' the Wisp. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.) "About, about in reel and rout The death fires danced at night; The water, like a witch's oils, Burnt green, and blue and