From a strategy perspective, this and Yshtolas decks are the ones Im most excited about
Firstly, black is a clunky colour that has poor card filtering capacity and a number of effects that are intrinsically situational or suffer poor scaling
"But on other planes, because the rules are cleaner and Sneak is what's going to be in standard, it's more likely that we'd use Sneak." That second variant of Leonardo, Sewer Samurai, is one of four cards with special art created specifically for the set by TMNT co-creator Kevin Eastman
When combined with any other Tax or Rule Change effect, it will often prevent your opponent from doing anything meaningful for the rest of the game
they allowed for a player to ruin the turn one of many decks before they had an opportunity to play
With the powerful card selection from Goblin Recruiter, Goblin Matron, Goblin Ringleader, Boggart Harbinger, and Muxus, Goblin Grandee, this might be the one typal deck which can consistently pull surprise wins from any board state