Battle styles aren't a singular mechanic, but more of a label to designate cards that are designed around a similar theme: for example, Single Strike cards are slower and focus on large, direct damage, whereas Single Strike cards are trickier, messing around with your opponent's resources and keeping them on their toes
Watermark: Phyrexian Illustrated by Min Yum Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Secret Rares featuring alternate artwork for previously released cards used to be quite few, but the Pokmon Company has begun releasing more of these beautiful cards into the Pokmon TCG to appeal to collectors
5 Photon Delta Wing Easy XYZ Plays Photon Delta Wing is a pretty good card to have in your arsenal if you want to get a combo going
Another one of my favourite mechanics is investigate and it has only been in the one set unlike cycling things so there is still plenty of design space to explore
Dive Down is of interest to me mainly for how well it slots into the Azorius Abhorrent Oculus deck, which utilizes lone threats like Oculus, Monastery Mentor, and Haughty Djinn
