Name:Kin-Tree Invocation
ManaCost:B G
Types:Sorcery
A:SP$ Token | Cost$ B G | TokenAmount$ 1 | TokenName$ Spirit Warrior | TokenOwner$ You | TokenPower$ X | TokenToughness$ X | References$ X | TokenTypes$ Creature,Spirit,Warrior | TokenColors$ Black,Green | SpellDescription$ Create an X/X black and green Spirit Warrior creature token, where X is the greatest toughness among creatures you control.
SVar:X:Count$GreatestToughness_Creature.YouCtrl
SVar:NeedsToPlay:Creature.YouCtrl
SVar:Picture:http://www.wizards.com/global/images/magic/general/kin_tree_invocation.jpg
Oracle:Create an X/X black and green Spirit Warrior creature token, where X is the greatest toughness among creatures you control.