The ludicrous excess of a seven-mana ramp spell practically screams Commander, and given how easily you can go infinite by using that mana to flicker, reanimate or recast Beledros, I expect this to quickly join the staples of that format
It's weak against Cyclone, etc., and it's limited to opponents with Trap, so small turns are not effective, but since it can halve the entire opponent, it has the ability to surpass attacks
Creature - Bat Color tag templates(None) Vampire Revenant Creature - Vampire Spirit Color tag templates(None) Vampire Sovereign Flying When this creature enters, target opponent loses 3 life and you gain 3 life
The red card Gamble completes the cycle
Flashed in a Resolute Reinforcements during your opponent's combat