Each stun counter stops a creature from untapping for a turn, so if you put three stun counters on a card, it will remain tapped for three turns
Lifegain strategies are among some of the most popular ones in any format, and Commander is no exception
The colour palette for the set is bright and oversaturated, so it is all pretty chaotic, particularly the graffiti-inspired styles (Rude Rider, Revved Up and Graffiti Giants, see below for examples of each)
Search your deck for a Lightning Energy card and attach it to this Pokmon
At the beginning of your upkeep, if your devotion to white and black is seven or greater, create a 4/3 white and black Vampire Demon creature token with flying
it'll take a while, but despite having a great track record at otherwise adapting a lot of different fantasy creatures into playable cards, MTG had a very long and storied history with trying to adapt werewolves