Historical Rules · 1 May 2014
Rule 707.1
Official source text from the 1 May 2014 Rules release
Two cards (Illusionary Mask and Ixidron) and the morph ability (see rule 702.36) allow spells and permanents to be face down.
Historical Rules · 1 May 2014
Official source text from the 1 May 2014 Rules release
Two cards (Illusionary Mask and Ixidron) and the morph ability (see rule 702.36) allow spells and permanents to be face down.