Counterspell

Grapeshot deals 1 damage to any target. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery. Overload 5RRR (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Target creature gets +1/+0 until end of turn. Draw a card.

Gain control of target creature with mana value 3 or less until end of turn. Untap that creature. It gains haste until end of turn.

Look at the top three cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Electrolyze deals 2 damage divided as you choose among one or two targets. Draw a card.

Exile target artifact, creature, or enchantment an opponent controls. That player may put a permanent card from their hand onto the battlefield.

Target creature you control gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.) Scry 1.