If you're curious, here are the rules for how cards like this work in Commander
Upon cracking open the packs, I was pleasantly surprised by the number of gorgeous full-art cards in the expansion
Etude of the Branded X TRAP Continuous During either player's turn, you can: Immediately after this effect resolves, Synchro Summon 1 Synchro Monster, using monsters you control as material, including a Dragon monster
The cEDH approach uses Rograkh as an easily-accessible piece of sac fodder for partner Tevesh Szat, Doom of Fools or a ritual like Culling the Weak
It's still incredible if you can set it up yourself and not die to your own ability
If you're unfamiliar, here's how it works