A few things looking over your most recent list/last few posts:
- Only reason to run
Mission Briefing over Snapcaster is budget. If you enjoy modern and blue, they're worth the investment.
- I don't think
Spellskite adds a lot to the maindeck, since you're running 4
Thing in the Ice for walls early anyways.
- Your deck is threat light. Even RUG Delver in legacy runs 12 creatures and some bolts to close it out.
-
Shadow of Doubt is a cute card, but adding the fourth
Remand, some
Repeal, or even
Cryptic Command are other options that replace themselves without being so narrow.
- If you have them, adding copies of
Mutavault is a good call as they come in untapped and are a better topdeck late than an
Island.