57mm x 89mm card sleeves Standard USA Chimera (56x87mm) these exact fit sleeves (64mm x 89mm) provide a snug fit for standard TCG cards up to 63mm x 88mm 110 x Sleeve Kings Clear

Ra's Disciple and Reactor Slime can both grant the necessary Tributes but don't grant an additional Normal Summon

While more control-esque builds may be playable, the build utilizing Legends is a thing of the past

The lone attack clause makes it shine brightest in Voltron artifact or equipment decks like Ayesha Tanaka, Armorer

Ace, Fearless rebel can put those Clues to very good use, sacrificing them or any other artifacts lying around to make +1/+1 tokens and force Fights

The less cared for commons in the first few TCG mainline sets would be cheap though, still at around that price

Servant is your best starter by Special Summoning Endymion or Loading