I mean, having all three on the battlefield under my control, would i be able to cast sorceries with flash from the top of my library, pay then with lives and get a free copy? Or do i have to choose one of the effects to "use"?
If you had a sorcery on top of your deck you'd get to cast it because of Eisha, you'd pay the cost using Bolas's Citadel's effect (unless you wanted to pay mana assuming you had any available) then make a copy of it when you cast it because of Melek's effect.
I mean, having all three on the battlefield under my control, would i be able to cast sorceries with flash from the top of my library, pay then with lives and get a free copy? Or do i have to choose one of the effects to "use"?