mtg placeholder cards Double-Faced Card - Extras: Innistrad Remastered, # 46 (Mana abilities cant be copied.) Helper Card - Placeholder Token

Splashing bombs or removal is something base green-blue decks will often want to do

You sacrifice one artifact, then bring back another from your graveyard directly onto the battlefield

Arwen, Weaver of Hope serves as a counter distributor and a counter payoff since putting counters on Arwen gives extra counters to future creatures

I would rather keep brain space and game changer space free for other legendary creatures perhaps on their own separate Commander-specific Game Changer list but all in all this guy just makes a ton of mana and gives you a restrictive outlet for you hes not even the most offensive mana-related Commander on the Gamechanger list

It slides into a lot of these sorts of early creatures that can cause a lot of chaos

You can even use Inkmoth Nexus to one-shot a player if you make Obuun large enough