Cyclone Summoner and/or Galecaster Colossus can be used to put your opponents on a massive disadvantage in terms of battlefield presence
It's done in fantastic detail, too - The eyes, the teeth, the tiny fragments of glass, everything
Cat Attack Regal Caracal | Illustration by Filip Burburan Creature (23) Savannah Lions x3 Dawnwing Marshal x2 Helpful Hunter x4 Arahbo, the First Fang Regal Caracal Felidar Savior x2 Good-Fortune Unicorn x3 Leonin Vanguard x3 Wary Thespian x4 Instant (6) Giant Growth x2 Claws Out x4 Sorcery (2) Felling Blow x2 Enchantment (5) Anthem of Champions Banishing Light x2 Angelic Destiny Unflinching Courage Land (24) Forest x6 Plains x9 Temple of Plenty Blossoming Sands x4 Selesnya Guildgate x4 Cat Attack is a very focused cat-typal deck that starts the curve earlier with Savannah Lions and Leonin Vanguard, ending the curve on Regal Caracal
If Cosima has left exile before the ability tries to resolve, it won't resolve and none of its effects will happen
He's been playing Magic on and off since 2017, and started playing Commander in 2024
It has the ability to be a good staple in a lot of really fun to play decks, but not worth much in your average deck