This instant is a great little modal spell thatll rarely be useless
By giving Angels access to more colors, more mana, and more ways to get them into play, you end up giving them basically what a lot of other creature types natively have access to in their own Commanders already
I also like it in Type Four which often has elevated casting costs to bring back due to the infinite mana nature of the format, and bringing back a giant 10/10 and gaining 8 life in one card is pretty strong there
You also have access to any spell in the game that can help with this strategy since Urtet is a 5-color commander
Each creature you tap while casting this spell pays for or one mana of that creature's color.) Any number of target nonland permanents you control phase out
This first deck isnt particularly flashy, but I think that Hanweir Battlements helps to solve one of the fundamental problems with U/R Goggles that its copies of Jace were so vulnerable to removal