Electrodominance
Electrodominance
Electrodominance deals X damage to any target. You may cast a card with converted mana cost X or less from your hand without paying its mana cost.
"Basically, we turn a bunch of little lightnings into one big lightning."
illus. Dmitry Burmak # 99/259

Oracle Text
Electrodominance deals X damage to any target. You may cast a card with converted mana cost X or less from your hand without paying its mana cost.
With ancestral vision you are spending 2 mana and 2 cards to draw 3 at instant speed. That's ok but not really so great, the problem I think will be that electrodominance is weak without the ancestral vision. It's basically a quicken that doesn't draw you a card but does some damage instead but costs a lot.
In living end the problem will be that it messes up your cascades. If you cascade into it and also have a living end in hand you still do your thing but that will go wrong too often. And since you can only play this 4 times you can't really build a living end deck of it. You could go 4x this and 4x as foretold to go a different route than cascade but you've turned a 1 card combo into a 2 card combo then which seems weak as living end requires so much other deckspace already.
I'm sure this will absolutely not be totally busted in any way.