Promise of Loyalty
Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or planeswalkers you control for as long as it has a vow counter on it.
And so was born the Fantastic Four! And from that moment on, the world would never again be the same!
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I built CardList while listing on eBay every day, same as you. Our Discord is small and friendly - hop in to share pulls, talk prices, and tell me what to build next. I'm in there as @mitchell most days, so come say hi.