Name:Clockwork Avian
ManaCost:5
Types:Artifact Creature Bird
PT:0/4
K:Flying
K:etbCounter:P1P0:4
T:Mode$ Phase | Phase$ EndCombat | ValidPlayer$ Player | IsPresent$ Card.Self+attackedThisCombat,Card.Self+blockedThisCombat | TriggerZones$ Battlefield | Execute$ TrigSubCounter | TriggerDescription$ At end of combat, if CARDNAME attacked or blocked this combat, remove a +1/+0 counter from it.
SVar:TrigSubCounter:AB$ RemoveCounter | Cost$ 0 | Defined$ Self | CounterType$ P1P0 | CounterNum$ 1
A:AB$ PutCounter | Cost$ X T | Defined$ Self | UpTo$ True | MaxFromEffect$ 4 | CounterType$ P1P0 | CounterNum$ X | ActivationPhases$ Upkeep | PlayerTurn$ True | References$ X | SpellDescription$ Put up to X +1/+0 counters on CARDNAME. This ability can't cause the total number of +1/+0 counters on CARDNAME to be greater than four. Activate this ability only during your upkeep.
SVar:X:Count$xPaid
SVar:Picture:http://www.wizards.com/global/images/magic/general/clockwork_avian.jpg
Oracle:Flying\nClockwork Avian enters the battlefield with four +1/+0 counters on it.\nAt end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1/+0 counter from it.\n{X}, {T}: Put up to X +1/+0 counters on Clockwork Avian. This ability can't cause the total number of +1/+0 counters on Clockwork Avian to be greater than four. Activate this ability only during your upkeep.