Once a creature that has reach because of Sphere Grid's last ability has blocked a creature, removing all +1/+1 counters from that creature or causing Sphere Grid to leave the battlefield won't cause that creature to stop blocking
The Outlaws of Thunder Junction Most Wanted Commander Deck includes 1 Red-White-Black deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil alt-border card of rarity Rare or higher and 1 Traditional Foil Borderless Uncommon card), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card
Muzzio, Visionary Architect (Commander Catchup, Part 2) Athreos, God of Passage
Ugin, the IneffableUgin, the Ineffable, however, seems right up the deck's alley
Its speculative Dimir Midrange is still dominant but the powers there
Think about the powerful and expensive reprints this deck had - even for its time - such as Grave Pact and Oblivion Stone