Brainstorm One mana, draw three cards, then put two back on top sounds simple, but Brainstorm gets ridiculous once you pair it with shuffle effects
when played, it adds 1 to your mana pool and allows you to draw a card (if you have 7 in hand)
Fans can add their favorite Marvel heroes and villains to their deck, including Bruce Banner, Captain America, Moon Girl and Devil Dinosaur, Namor the Sub-Mariner, Quicksilver, Galactus, Sentry, and more
Then the non-active player adds theirs
Sadly, those blasted Hundred-Handed Ones running rampant through the format are destroying the delicate balance of the combat phase
Considering that there are ways to Reveillark this (since its a 2/2) and other shenanigans, you can set up all sorts of infinite combos and reanimation loops with the Guide, generating extra mana, death triggers, and more