Helping you wear away at your opponents board state while simultaneously building your own, The Reaper, King No More, is a powerful game piece and a worthy alternate commander
If your opponent plays one (or other clutch mana rocks Sol Ring, Grim Monolith, Mana Vault) and you don't, you'll soon feel like you're falling behind
Phenomenal touch
I also played with proxies back in the day and we used proxies for cards we never had to get a feel for how they worked, and if we wanted to use them
Our priority is to add the ones that have synergy with flying, that are artifact or enchantment creatures themselves or have synergy with tokens
Then, the creature side is incredibly imposing and can take over the game all on its own I would always play a three mana 2/2 that draws me a card, and this is a lot better than that