Name:Collector's Cage
ManaCost:1 W
Types:Artifact
K:Hideaway:5
A:AB$ PutCounter | Cost$ 1 T | ValidTgts$ Creature.YouCtrl | TgtPrompt$ Select target creature you control | CounterType$ P1P1 | CounterNum$ 1 | SubAbility$ DBPlay | SpellDescription$ Put a +1/+1 counter on target creature you control.
SVar:DBPlay:DB$ Play | Defined$ ExiledWith | Amount$ All | Controller$ You | ConditionCheckSVar$ X | ConditionSVarCompare$ GE3 | WithoutManaCost$ True | Optional$ True | SpellDescription$ Then if you control three or more creatures with different powers, you may play the exiled card without paying its mana cost.
SVar:X:Count$DifferentPower_Creature.YouCtrl
DeckHas:Ability$Counters
Oracle:Hideaway 5 (When this artifact enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.)\n{1}, {T}: Put a +1/+1 counter on target creature you control. Then if you control three or more creatures with different powers, you may play the exiled card without paying its mana cost.
