Name:Ceta Sanctuary
ManaCost:2 U
Types:Enchantment
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | CheckSVar$ X | SVarCompare$ GE1 | Execute$ TrigDraw | TriggerDescription$ At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.
SVar:TrigDraw:DB$ Draw | Defined$ You | NumCards$ 1 | ConditionCheckSVar$ X | ConditionSVarCompare$ EQ1 | SubAbility$ DBDraw | References$ X,Y,Z
SVar:DBDraw:DB$ Draw | Defined$ You | NumCards$ 2 | ConditionCheckSVar$ X | ConditionSVarCompare$ GE2 | SubAbility$ DBDiscard | References$ X,Y,Z
SVar:DBDiscard:DB$ Discard | Defined$ You | Mode$ TgtChoose | NumCards$ 1
SVar:Y:Count$Valid Permanent.Red+YouCtrl/LimitMax.1
SVar:Z:Count$Valid Permanent.Green+YouCtrl/LimitMax.1
SVar:X:SVar$Y/Plus.Z
SVar:RemRandomDeck:True
DeckHints:Color$Red|Green
SVar:Picture:http://wizards.com/global/images/magic/general/ceta_sanctuary.jpg
Oracle:At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.