
Search your library for up to X basic land cards, where X is the number of lands you control, put them onto the battlefield tapped, then shuffle.
Boundless Realms has 2 printings, first in Magic 2013 (2012). EDHREC ranks it #5,999 among Commander cards. It appears most in Omnath, Locus of Rage decks (1,283 on EDHREC). It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.