Mages' Contest [The List] 001 This card's effects can only

This card's effects can only be applied or activated while it has Xyz Material

Set: Secret Lair Drop Series Type: Land Rarity: Rare Rootbound Crag enters the battlefield tapped unless you control a Mountain or a Forest

Set: 30th Anniversary Edition Type: Creature — Spirit Rarity: Rare Cost: {B} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Innistrad: Crimson Vow Promos Type: Basic Land — Island Rarity: Common ({T}: Add {U}

When Old One Eye enters the battlefield

Mages' Contest [The List] 001 This card's effects can onlySet: The List Type: Instant Rarity: Rare Cost: {1}{R}{R} You and target spell's controller bid life. You start the bidding with a bid of 1. In turn order, each player may top the high bid. The bidding ends if the high bid stands. The high bidder loses life equal to the high bid. If you win the bidding, counter that spell.