Another reason to Hug before you Slug is that many of Group Slugs punishing cards get better when the opponents have more resources
My first thought was honestly Khalni Garden, because we can play that Land, then stack the ETB triggers so the token gets created then picks up the counter from Bill
Dire Fleet Daredevil For just , you get a 2/1 with first strike, which is already solid for early-game aggression
#19: Near-Death Experience A similar path to that traveled with Barren Glory exists here for Boros mages, incorporating Worldfire or Soulgorger Orgg to decimate yourself in the name of one big Near-Death Experience turn
A Blue Sorcery, for one blue mana and one colorless, the player was able to take another turn which is a definite game-changer
Massacre Girl Massacre Girl works as a very niche commander that extracts the full value from creatures that get counters when other creatures die (Slaughter Specialist) or benefit from the number of creatures that died in a turn (Bloodcrazed Paladin)