Well, the undead cousin is
Two other nice-to-have cards are Trouble in PairsTrouble in Pairs and Greymond, Avacyn's StalwartGreymond, Avacyn's Stalwart
Depending on their budget and available space, Players can usually benefit from organizing their collection by Ink Colour instead of by Set
I've had a ton of games with Bogles where you flood out and are stuck just sitting on a ton of excess mana with no way to utilize it
This blue instant also counters artifacts, Karn, etc., and also fizzles lots of stuff while replicating into Ashling triggers, which allows an Izzet deck to be pesky while converting into while rummaging/drawing three cards and dishing out a one-sided Pyroclasm
Brainstorm is currently suspended in Historic