Yes, it costs UUU which is expensive, but its a 10/1 which is and of itself a thing, and it has unblockable, and uh, really you can ignore attacking and just mill via something else
No matter what they choose to give you, its gonna be fine
Action Cards Actions are one-time use cards
One possible way is by making it easier to detect when a single buyer is making suspiciously large bulk purchases
I can see an argument for Invasion of Karsus being in the A-tier, but its inefficiency compared to Brotherhood's End gives me pause
Id say this was a very fun and worthwhile goal, but really, Gold Star cards just have massive appeal for me and there isnt another set in the English TCG, imo, that comes close (1st Edition Base PSA 10 complete set obviously is on a tier of its own, should go without saying, but Gold Stars are second for me in terms of prestige, price, scarcity and collectability)