There are so many ways to finish off that VMAX
This is, of course, borrowed mostly from the games physical counterpart, and strengthened by little touches like being able to being able to zoom in and tilt the cards, with a slight holographic on the rarer ones
You can only activate 1 "Clockwork Night" per turn
Mirrorjade is good, but the other Fusion Dragons' only effect is to Fusion Summon another monster
Of course, most of the other Red-Eyes spell and trap support is rather mediocre, which by extension makes this hard to give it the priority it would otherwise have when building a Red-Eyes deck
for the rest of this turn, your opponent cannot target "Dracoslayer" monsters you control with card effects, also they cannot be destroyed by your opponent's card effects