bob the builder mtg card GRIXIS MAESTROS Blue/Black/Red Mana Commander Deck Starter Pac – CommanderComplete Unsanctioned Type B.O.B. (Bevy of Beebles)

If you think it would be fun to have options and always have an answer to everything your opponent plays, blue is the way to go

If there are cheap enough Time Travel cards, that could make it possible for a player to suspend a card and then cast it several turns early, possibly even in the same turn

Mana Echoes seems like a great card to include in a Morophon deck since Morophon will often pay for colored part of your casting cost, and then Mana Echoes will generate colorless mana to pay for the other part of your Elementals casting cost, potentially letting you cast giant Elementals without much mana at all

You can use this with ways to pump his power in a Voltron deck, a +1/+1 counter deck

These common cards make up most of the cards in the game, leaving a scant minority of valuable cards

I would invariably find myself slightly jealous that peers would stumble upon these great trades with people that valued their Force of Will at $30 or your Praetors Grasp at $3