Orazca Puzzle-Door and Hermitic Nautilus are a couple of examples of new blue cards from The Lost Caverns of Ixalan that you can use to craft with two other nonland permanents with activated abilities for the card to transform into Locus of Enlightenment
When you discard a nonland card this way, the reflexive triggered ability triggers and you pick a target to be dealt damage
Milling isn't a very reliably strategy in this format, so she's mostly just a hard-to-cast two mana 2/2 with lifelink
As a Jeskai deck, part of its cards are Blue, and I quickly learned that, for some reason, everyone loves hating that color
To play the game, you and your friends need 60-card decks
The format has lost most of the burn that can target both players and creatures