Name:Quicksilver Gargantuan
ManaCost:5 U U
Types:Creature Shapeshifter
PT:7/7
K:ETBReplacement:Copy:ChooseCreature:Optional
SVar:ChooseCreature:DB$ ChooseCard | Cost$ 0 | Defined$ You | Amount$ 1 | Choices$ Creature.Other | SubAbility$ DBCopy | RememberChosen$ True | AILogic$ Clone | SpellDescription$ You may have CARDNAME enter the battlefield as a copy of any creature on the battlefield. It's still 7/7.
SVar:DBCopy:DB$ Clone | Defined$ Remembered | SetPower$ 7 | SetToughness$ 7
SVar:Picture:http://www.wizards.com/global/images/magic/general/quicksilver_gargantuan.jpg
Oracle:You may have Quicksilver Gargantuan enter the battlefield as a copy of any creature on the battlefield, except it's still 7/7.