After testing just about every R4NK archetype out there (and also other archetypes that don't really use R4NKs, but have level 4 monsters, like mitsurugi and vaalmonica), i decided to go with onomat for my secondary engine in ryzeal.

Pic related is what you get out of a single goblindbergh. Doesn't look that impressive, right? Again, this is just one card, and it's technically the most unoptimal way to start the combo, since goblindbergh can get handtrapped and if you don't have warrior/ice/ext in hand, you're screwed.

That dwarf in hand is meant to be a random card, so you go +2 if everything resolves. If you feel like wasting ext and having only a 3 material detonator, you can add another R4NK (starliege/tornado) to this board. And if you feel like using that onomatopaira and random draw too, you can add another R4NK to it.

This is also not an optimal list, i'm not running seventh tachyon $30+ per copy!, but if i were, i'd have two targets for it: masquerade for ice/ext and cestus for warrior/goblind/sword, both can also help out during the battle phase against monsters that float or have effects that trigger during it.