As the name suggests, draft boosters are designed for limited formats , such as draft and sealed play
Theres also Thundercloud Shaman, a five-mana red 4/4 that reads, When Thundercloud Shaman enters the battlefield, it deals damage equal to the number of Giants you control to each non-Giant creature. Even if you only control a handful of Giants, thats usually going to deal enough damage to wipe the board
The best commander for a fractal-themed deck is absolutely Primo, the Unbounded
I think thisll be better in non-Voltron builds, personally you can already make a player lose the game with combat damage in Voltron
1 Limiter Removal
This evolution of Pawniard is known for its menacing design, reminiscent of a medieval knight clad in sharp blades and armor