mtg urza commander deck Custom Urza, Lord High Artificer 100 Magic Cards EDH Blue Artifacts When Urza Urza, Lord High Artificer -

Aggressive fire and thunder magics are assigned to red

ICE [18-021R] Cu Chaspel One card is still discarded from the players hand, even if there are no cards able to be selected in the break zone and it was not possible for them to add cards to their hand

Looking beyond this set, there really are an absurd number of things you can do with a ton of mana in typal decks, from activating Horde of NotionsHorde of Notions a bunch to triggering Risen ReefRisen Reef more times than really necessary

If you dont have Transgress than this is the best turn to land threats against them as it puts them in a difficult situation to have to decide between casting Glimmer which they need to do, or countering whatever threat you play