At best, after an Immense or something similar, you are dealing 8+ damage, either killing your opponent on the spot or guaranteeing your Bolts/Goyfs can finish the job next turn
Rally the Galadhrim is another four mana clone-your-stuff spell
Adventurer's Airship Adventurer's Inn Aettir and Priwen Balamb Garden, Airborne Balamb Garden, SeeD Academy Baron, Airship Kingdom Blitzball Buster Sword Capital City Clive's Hideaway Cooking Campsite Crossroads Village Eden, Seat of the Sanctum Elixir Excalibur II Forest Genji Glove Gohn, Town of Ruin Gongaga, Reactor Town Guadosalam, Farplane Gateway Insomnia, Crown City Instant Ramen Iron Giant Ishgard, the Holy See Island Jidoor, Aristocratic Capital Lindblum, Industrial Regency Lion Heart Lunatic Pandora Magic Pot Magitek Scythe Midgar, City of Mako Monk's Fist Mountain Plains PuPu UFO Rabanastre, Royal City Relentless X-ATM092 Ring of the Lucii Sharlayan, Nation of Scholars Starting Town Summon: Bahamut Swamp The Gold Saucer The Masamune The Regalia Treno, Dark City Ultima Weapon Ultima, Origin of Oblivion Vector, Imperial Capital Wastes Windurst, Federation Center World Map Zanarkand, Ancient Metropolis
Not to mention that there are cards out there that reward you for losing life
If you somehow knew for a fact that both players on either side of you were drafting Mardu decks, it would probably be in your best interest to draft either Sultai or Temur, because you'd get passed all of the best blue and green cards that your neighbors didn't want