The Twilight Masquerade expansion is the perfect choice
In its LV.X holo form, Infernape radiates pure power and energy
If you really want to make Trepanation Blade work, try to weave exile into the deck
With three willpower its a frustratingly sticky early blocker and quester, and it turned up in a Steel/Amethyst list that took first at a 56-player championship
Thankfully we can play Skullclamp and Smugglers Copter in Commander, and the latter is a vehicle Ive played even in non-vehicle decks (especially those that want to do reanimator things)
The real ability here though, is At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuuns power