
For each creature you control, you may search your library for a creature card with the same name as that creature. Put those cards onto the battlefield, then shuffle.
Doubling Chant has 1 printing, first in Magic 2012 (2011). EDHREC ranks it #19,634 among Commander cards. It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.