I'm not sure that the 1 drops available are truly strong enough to make this a deck but I won't be shocked if someone figures something out, if not immediately down the line
Activate only if there are seven or more cards in your graveyard
There are 16 legendary Giants you could be using as a Commander, including 10 that are Red from Brion Stoutarm to Ruhan of the Fomori
You can use cheaper, tapped creatures with powerful enters effects, and combine those with massive lategame bombs
On the other hand, it was specifically designed to let us think, plot, and scheme like villains, allowing us to make plays now to have a huge turn later
Casal, Lurkwood Pathfinder // Casal, Pathbreaker Owlbear I almost overlooked Casal, Lurkwood Pathfinder when browsing bears on Scryfall because you have to transform the Tiefling Druid in order to unleash the bear