The Ur-Dragon Commander decks always get new toys with each set because WotC is always printing new and powerful dragons and tribal incentives like Sarkhan, Soul Aflame, Thrakkus the Butcher or Carnelian Orb of Dragonkind
Mirko now spends his days hunting down rumors and clues of Lazav's whereabouts, He thinks it's a test: if he can track down his former guildmaster, then he will prove himself worthy of rejoining the Dimir and regain his rightful place within the guild
Think Shroofus Sproutsire for saprolings
Caesar allows you to choose from two of his effects every turn means that youll quickly be building up an impressive board presence, restocking your hand, and eventually directly burning your opponents once the Legion is numerous enough
Whats more, you can add card-draw punishment or discard payoffs with cards like Sheoldred, the Apocalypse or Waste Not
Then you can simply sacrifice them to something like Goblin Bombardment or just have a card like Warstorm Surge deal damage to your opponents