
{U}: This creature gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)
River Merfolk has 2 printings, first in Fallen Empires (1994). EDHREC ranks it #30,747 among Commander cards. It appears most in Graviton, Fundamental Force decks (1 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.