Clockwork Avian [Beatdown] Phyrexian Artificer where X is the exiled

where X is the exiled creature card's power and Y is its toughness

Bestow {3}{G}{G} (If you cast this card for its bestow cost

Set: Commander 2014 Type: Creature — Hydra Rarity: Rare Cost: {X}{G}{G}{G} Trample

Set: Commander 2018 Type: Creature — Insect Rarity: Rare Cost: {4}{G} Trample

The kor send their thopter kites to see if the land is in a welcoming mood

Clockwork Avian [Beatdown] Phyrexian Artificer where X is the exiledSet: Beatdown Type: Artifact Creature Bird Rarity: Rare Cost: {5} Flying Clockwork Avian enters the battlefield with four +1 +0 counters on it. At end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1 +0 counter from it. {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 only during your upkeep.