It already feels like he's been in the format forever, as he and last year's Ledger Shredder have become staples in mid and high-powered Blue decks and probably even see some cEDH play
These cards also work well with one another since their +1/+1 counter ability stacks when there are multiples on the battlefield
Commanders like Meren of Clan Nel Toth and Ezuri, Claw of Progress become significantly stronger with every extra Experience Counter, making Proliferate an easy inclusion
While its possible well see Renegade Tactics played fair, to help a straightforward red aggro deck punch through damage, Im not actually sure how much people are counting on blocking
The very same card will also be available in the Knock Out Collection for this set
Protection from white is great for dodging removal, and protection from green can help the equipped creature get around some big creatures