one piece card game ivankov OP16-026] Emporio SR/P〈Parallel〉 Akihiro MIYANO Premium Booster Emporio.Ivankov ST13-005 - One Piece

It's easy to see why, because dragons are a well-stocked creature type in the game, and The Ur-Dragon's WUBRG identity means every format-legal Dragon is available to you, and they cost one mana less even when The Ur-Dragon is in the Command zone

These are all fairly pricey due to their sheer scarcity, but Command Tower takes the top spot among them

Brainstorm would be too much, but even if fetchlands were legal, I just do not think it would not have as destructive of an impact as Mana Drain would have

Creature - Goblin Shaman Color tag templates(None) Victimize Choose two target creature cards in your graveyard

The big one is Phyrexia: All Will Be One (January 2023)