Lets say I have a Myr Welder on the battlefield. Within graveyards, there happens to be aPrototype Portal and a Sol Ring. Across the next few turns, I Imprint both Prototype Portal and Sol Ring onto my Myr Welder. From there, I activate the Imprinted Prototype Portal ability. What happens?
My guess is that I must pay 5 mana and it will create a Prototype Portal AND a Sol Ring, but I know not the rulings that would lead to that conclusion. I have tried reading the page on Imprint and gatherer rulings for Myr Welder, but I did not fully understand what I was reading nor did I think I found the answer I needed.