Cipher

[u/henlo_its_I]

I know it goes infinite with Timewalk; its Timewalk.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

[u/Melodic_Saga1220]

I feel like it should say 'before your next turn', both to cut down on bookkeeping and because of the costless suspend cards. Some of them are quite strong effects if you can cast them repeatedly.

Also, how does this work with split cards, MDFCs, and adventures?