Countermagic is very important because it's the only way to answer most instants/sorceries we don't want resolving, but also doubles as ways to protect our combo pieces when we try to go off
That spell sticks around in exile until the end of your next turn, so if you dont need it now you can stockpile them a bit
Here are some cards to consider in not much particular order: Chromatic Orrery (high cmc and provides a lot of mana) Mission Briefing (can add card to graveyard for delve and recast Brainstorm which is arguably one of the best cards in the deck) Chain of Vapor (way to return a card to hand as well as an opponents card or cards) Archaeomancer (can get brainstorm back and can be returned to hand with ninjitsu potentially) Flood of Tears (this is a pet card of mine
It doesnt always perform, but being able to draw a card off of any non-mana activated ability on a creature or land has a lot of potential
Doubly so as convoluted and dull commander cards don't get tried and tested in draft, standard and so forth and so don't get to prove their worth to the wider community and so are typically overlooked
The Groudon in this set is only around $81, which isnt amazing for a main chase card, but I think the wide variety of other hits definitely makes up for it
