Rule evolution
Rule 718.3a
Previously numbered 719.3a.
Earliest archived Rules release: 2022-11-18 · 0 wording revisions · 1 renumbering
Added719.3aDetails
While casting a prototyped spell, use only its alternative power, toughness, and mana cost when evaluating those characteristics to see if it can be cast.
Renumbered
719.3a→ 718.3aDetailsPreviously
7. Additional Rules
719. Prototype CardsThen
7. Additional Rules
718. Prototype CardsWhile casting a prototyped spell, use only its alternative power, toughness, and mana cost when evaluating those characteristics to see if it can be cast.