You can activate Deck Lockdown to prevent both players from adding cards from their deck to their hands, apart from the draw phase, and prevent your opponent from special summoning from their deck
The price for the easier mana of a Temur commander instead of all five colors is losing access to powerful cards like Rivaz of the Claw, Taigam, Ojutai Master, Ancient Brass Dragon, and the other 5-color dragons
This card is sure to be a popular leader in Magic's most popular format, Commander, as it will let you cheat all sorts of big and expensive legendary creatures into play far earlier than expected
The devil Mahadi, Emporium Master looks for the same instances of creatures dying, and these cards are each 99% less expensive
It's dizzyingly large, a seemingly impossible and endless loop of buildings and locations