Historical Rules · 3 May 2019
Rule 702.36d
Official source text from the 3 May 2019 Rules release
You can’t normally cast a card face down. A morph ability allows you to do so.
Historical Rules · 3 May 2019
Official source text from the 3 May 2019 Rules release
You can’t normally cast a card face down. A morph ability allows you to do so.