Those purchasing the precon Valgavoth deck will find more variability and opportunities for adjustment
As you can see there are plenty of red and red-leaning cards if you feel like one combat per turn is just not enough
Both Bruna and Gisela are powerful cards on their own, one a beefy attacker, the other a top-end threat with a reanimate trigger on it
Either you can afford to play, at which point you simply go out and get the dual lands you need, or youre far enough behind the curve that youd need the format to be a lot cheaper for you to actually consider buying in
Overvolt Discharge attaches three Basics from discard to Lightning Pokmon at the cost of knocking Magneton out
I see it as a requirement to play one because if you are attempting to win with Serra Angel and there is a Maze of Ith (commonly restricted) in play, you need more ways to destroy it than a single Chaos Orb (although Stasis is another solution to Maze after the first activation)