Name:Snake Pit
ManaCost:3 G
Types:Enchantment
T:Mode$ SpellCast | ValidCard$ Card.Blue,Card.Black | ValidActivatingPlayer$ Opponent | Execute$ TrigToken | TriggerZones$ Battlefield | OptionalDecider$ You | TriggerDescription$ Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.
SVar:TrigToken:AB$Token | Cost$ 0 | TokenAmount$ 1 | TokenName$ Snake | TokenTypes$ Creature,Snake | TokenOwner$ You | TokenColors$ Green | TokenPower$ 1 | TokenToughness$ 1
SVar:Picture:http://www.wizards.com/global/images/magic/general/snake_pit.jpg
Oracle:Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.