Move over Bystial Runick, the OG deck that pairs incredibly well with Runick is still good despite it's nerfs, and that is Spright!
The ridiculously strong combination of Spright and Runick's smothering control and endless grind game create a deck that all strategies would have to fear and respect. Sprights ending on 3-5 interruptions (Sprind's bounce, Red's monster negate, Carrot's S/T negate, Smasher's banish, and I:P Masquerena's quick link) combined with Runick's draw 3 and multiple quick play spells generally stop any deck cold in their tracks. Both archetypes combined have a potential 10+ interruptions for your opponent to slog through, while maintaining a superior resource loop - outpacing most other strategies!