If you'd rather have some less specific nonsense, however, then there is one other combo I found that involves all one-cost or less artifacts, creatures, or enchantments
Price $31.32 Keeping your board alive in a multiplayer game like Commander is a tricky thing, making cards like Everybody Lives
Whats amazing is that they dont come back with Finality counters (those ensure a one-time use), so feel free to bring them back if an opponent destroys them
It's great, but you need to run it in the right deck, not every deck can get cards into the graveyard and some want to save them for reanimation like Living Death or recursion like Eternal Witness
A spell or token with changeling is just as much an Elf, a Dwarf, a Sliver, a Goat, a Coward, and a Zombie as it is a Shapeshifter