Starting with the most conventional of these new MTG commanders: Winter, Cynical Opportunist leads the golgari graveyard deck, Death Toll
Altar of the Brood, Gimli of the Glittering Caves, Molten Gatekeeper, Vigilante Justice, Witty Roastmaster, Outpost Siege, Pandemonium DemonDragonJ on Double Trouble 1 year ago I have replaced Molten Gatekeeper with Agate Instigator, which reduced the average converted mana cost of this deck from 3.82 to 3.81, because the instigator has a stronger synergy with this deck than did the gatekeeper.
The day after the $1.23 million autographed Charizard sale, a PSA 9 Bronze 3rd Place Trophy Pikachu that was also signed by Mitsuhiro Aritaand and included a sketch of Pikachu sold for $189.1K, which now looks like a steal compared to the most recent PSA 10 sale
According to some estimates, this card can cost from a million to five million dollars
Number SevenExert Influence Exert Influence might not exactly qualify as mono-blue, but I think it does