Alector, Sovereign of Birds [YR05-EN001] Ultra Rare Cat Soldier When Arena of the Ancients

When Arena of the Ancients enters the battlefield

that player sacrifices all but that many permanents

Set: Hour of Devastation Prerelease Promos Type: Legendary Planeswalker — Bolas Rarity: Mythic Cost: {4}{U}{B}{R} +2: Target opponent exiles cards from the top of their library until they exile a nonland card

As in other Silver games

Alector, Sovereign of Birds [YR05-EN001] Ultra Rare Cat Soldier When Arena of the AncientsSet: R Manga Promo Card type: Effect Monster Rarity: Ultra Rare Attack: 2400 Defense: 2000 If your opponent controls 2 or more face up monsters of the same Attribute, you can Special Summon this card from your hand. Once per turn, you can select 1 face up card on the field. Its effect(s) is negated during that turn. There can only be 1 face up "Alector, Sovereign of Birds" on the field.