Tangleroot [Mirrodin]

Set Name:	Mirrodin
Rarity, #:	Rare, #259/306
Card Type:	Artifact
P / T:	N/A
Description:	Whenever a player casts a creature spell, that player adds .
Flavor:	As if there's glitch in the system, the Tangle sometimes folds in on itself, throwing off sparks of mana in a mystifying display.