Siege Modification : Enchantment (Aura), casting cost of one generic and two red mana, enchanting creature or vehicle
Azorius Control: A classic control strategy relying on counterspells, board wipes (e.g., Supreme Verdict), and planeswalkers like Teferi, Hero of Dominaria to dictate the pace of the game and eventually win through overwhelming card advantage or an unassailable board state
Lastly, you need to fill a lot of your spell slots with cards there mainly to trigger prowess
Regardless, Mickey's action shot and determined expression show his capability in inspiring those around him in this artwork by Maria Zafrilla
That's very useful for two cards in particular: Beren and Luthien, which lets you make minions Strength -1 if there are Elf cards beneath your draw deck, and more importantly The Underdeeps of Moria