
No more than two creatures can attack you each combat.
Crawlspace has 4 printings, first in Urza's Legacy (1999). EDHREC ranks it #1,405 among Commander cards. It appears most in Kratos, God of War decks (6,306 on EDHREC). 1 public deck on TCG runs it. It has 1 official ruling.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.