make your own mtg card Conjurer If you do How to Make Your Own

So, because I don't know what you're looking for and you gave practically 0 information to make suggestions simple, here's every single infinite combo I can think of or find in Esper (and some of these aren't even registered as combos on the site, so

Aetherborn Warrior : Creature (Aetherborn Warrior), casting cost of two generic and one black mana, 3/2

Trading three mana for five is well worth the cost of entry

Or, of course, decreasing the value once someone detects the scam

putting an extra land on the battlefield, like with a fetch land, won't trigger Horn of Greed

If your commander itself is a source of card advantage, then you can get away with a lower number here