Teach by Example

Fork has always been a bad deal: it copies a spell but demands two red pips up front, and it fires on the stack immediately, so the mana and the copy both happen in one breath. This design splits that sequence in two. You pay the two hybrid mana ahead of time, then the copy waits as a delayed trigger until you next fire off an instant or sorcery. The split is the whole trick. When the copy resolves it costs nothing, so the doubled spell arrives clean rather than chained to a payment made in the same instant, and the trigger simply stacks onto whatever the real spell is already doing. It duplicates only your own castings, which is why it never works as a mirror to bounce an opponent's bomb back at them the way Fork and Reverberate can. The hybrid pips finish the job: castable in mono-blue or mono-red, the effect reaches spell-slinging decks on either side of the Izzet line without demanding both colors at once. What results is a copy effect built for a proactive turn instead of a reactive one, with the payment moved out of the way so the doubling lands on your terms.