Continuous Trap Cards Next, Continuous Trap Cards
Though these would have been given out to all participants of the events, its likely that many would not have been taken care of, or kept, and their unusual nature as promo cards in different colours does add to their allure
This isnt a mana ability

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There are countless Cthulhu-themed versions of existing games - from Lovecraft Letter to Pandemic: Reign of Cthulhu - RPGs inspired by Lovecrafts works and, of course, enormous board games based on the mythos
I guess this is another key payoff. Tokens are pretty great, and hexproof is greatbut there arent exactly Merfolk lords, right