Pair him with the Sphere Grid Enchantment which gives you a counter every time you damage a player, and it really starts to feel like the game
Release date: 1998-08-17 Charm School The Cheese Stands Alone Double Dip Get a Life I'm Rubber, You're Glue Knight of the Hokey Pokey Lexivore Look at Me, I'm the DCI Mesa Chicken Miss Demeanor Once More with Feeling Prismatic Wardrobe Sex Appeal Bureaucracy Censorship Checks and Balances Chicken la King Clambassadors Clam-I-Am Clam Session Common Courtesy Denied
In fact, with Dionus in the command zone you can actually include a +1/+1 Counter sub-theme, which is incredibly useful to Elfball in particular as it helps shore up traditional weaknesses to the archetype: Elves a vulnerable to board wipes, so adding extra draw and protection like Inspiring Call and Armorcraft Judge make it far easier to avoid getting shut down by wipes
It then becomes a 0/0 Phyrexian creature and you can attack and block as normal (summoning sickness applies)
Despite the misunderstanding on my part, I find Sisterhood of Karn to be a fun little creature that gets bigger the more spells you cast from exile
If Squall manages to connect (something easily done by making it unblockable with Equipment), you get to bring a permanent back from the graveyard to the battlefield