EDIT: quicksilver and domino not worth it. With magik we can afford to skip turn 1 and 2 to almost guarantee electro and wave turn 3 and drop bombs all the way to turn 7. every card here either has massive power or the capability to move or distribute said power.
Saw a youtuber play this deck... pretty genius
Force agatha to make the minimum amount of decisions possible. This is done by forcing her to always play like this:
turn 1: nothing
turn 2: nothing
turn 3: because agatha draws herself in addition to the normal 4 cards she thins deck by 1. Since chavez cant be drawn, she also thins your deck by 1. this means by turn 3 you have drawn 6 cards and size chavez cant be drawn you now draw with a 2/5 chance to get electro or wave for her to play
turn 4: if she plays wave she will play herself meaning you control turns 5 and 6. If she plays electro she will play one of three 5 drops (jones usuually 10 power since 2/3 chance she plays herself somewhere else on turn 5, vision and captian marvel can move favorable for you to win the game.
Turn 5: start dropping bombs to win
Turn 6: same as turn 5.
Now you may be asking yourself why play a suboptimal ramp deck just to play agatha. 1: agatha thins your deck, is overstated for her cost, and has low variance due to the way the deck is built. 2: agatha always collects boosters, meaning it is the most efficient way to upgrade your collection level over time as you dont have any boosters wasted ever.