Clockwork Avian [Antiquities] Basic Land {T}: Put up to X

{T}: Put up to X +1/+0 counters on Clockwork Avian

is a fast-paced

but you might want a card that guarantees you can Summon them when you need them too

Each player turns over their card revealing the answer they think you chose

A thousand rays shine forth and meld into one

Clockwork Avian [Antiquities] Basic Land {T}: Put up to XSet: Antiquities 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.