Use code GOBLIN10
I really like the action star mechanic for a couple of reasons: first, because it makes you carefully choose what to spend your 5 stars on, and second, because it means the game won't be automatically dominated by the rich kid who can just buy all the best action cards
Let me know what cards you would play in Sethron
Like Anhelo, Bennie Bracks can only be found in Set booster packs (or as extended art cards in Collector Boosters)
In limited, you have enough Lander tokens floating around to repeatedly double somethings' power, but in constructed and Commander, this slots nicely into the endless parade of fetchlands, extra lands, and land recursion that already make land decks an absolute beast to play against
An added advantage of having Cursed Merfolk exerted on your field is that your opponent will be forced to discard a card when challenging it, giving you a leg-up on hand resources as well as lore