Mages' Contest [INV - 154] Printing:Normal you may cast a copy

you may cast a copy of a spell with that name

Undercity Sewers enters the battlefield tapped

Rules Text Contains: White spells you cast cost 1 less to cast

the Defiler enters the battlefield with a number of +1/+1 counters on it equal to the greatest mana value among cards in exile

When Thundering Falls enters the battlefield

Mages' Contest [INV - 154] Printing:Normal you may cast a copyRarity: R #: 154 Creature Type or Sub Type: Instant Rules Text Contains: You and target spells controller bid life. You start the bidding with a high bid of 1. In turn order, each player may top the high bid. The bidding ends when the high bid stands. The highest bidder loses life equal to the high bid. If you win the bidding, counter that spell.