I actually dont think that General Kreat offers much as a commander, but shell go great in the 99 of decks such as Krenko, Mob Boss or Purphoros, God of the Forge that are already looking to throw massive amounts of tokens onto the battlefield to finish off opponents
Being a 3|3 Character means your opponent can remove it through a Challenge or one of their cards abilities
Creatures (8) Planeswalkers (3) Lands (16) Spells (33) 1 Sensei's Divining Top 1 Brainstorm 2 Mana Drain 1 Vampiric Tutor 1 Yawgmoth's Will 4 Force of Will 1 Sol Ring 1 Demonic Tutor 1 Time Walk 1 Ancestral Recall 1 Mana Crypt 1 Time Vault 1 Merchant Scroll 1 Tinker 1 Voltaic Key 1 Black Lotus 1 Mox Emerald 1 Mox Jet 1 Mox Pearl 1 Mox Ruby 1 Mox Sapphire 3 Thoughtseize 4 Spell Pierce 1 Nature's Claim While The Deck had to play a playset of Swords to Plowshares and a playset of Disenchants, saving Demonic Tutor for restricted cards, eventually, things got so powerful that you could just play decks with a single creature kill spell and a single Disenchant effect
Commander Decks Unleash ready-to-duel decks for the ultimate multiplayer experience: One commander, 100-cards
While it might not be as impactful, sometimes it's all you need to close out a game
First off: Obelisk of Grixis needs to go