MTG Salvation

My playgroup was challenged to make mono colored decks to bring to our future table. Here is a mono blue deck that uses flicker to take advantage of effects and should have plenty of card draw. I like what Thassa, Deep-Dwelling brings to the table and she is pretty easy to get on the board in a hurry.

I am looking for help in improving the flicker effects. There is plenty of card draw, but very few of the card's effects hit other players.

Any advice to improve the deck would be great. Thanks!

Two cards I'd consider are Gilded Drake, Oblivion Stone, and Capsize. The drake is great with blink, but it's been getting very expensive lately and I'm not sure what your budget is. Obilvion Stone is good because it gives you answers to some problematic card types in your colors, a lot like the disk. Capsize is good because it gives you temporary answers to some common permanent types that mono blue has trouble with, like artifacts and enchantments, though this is probably better if you had a few counterspells.

Gilded Drake is like $150... Oblivion Stone is certainly interesting, I will add that to the Maybe Board. Capsize might fit in, but a counterspell would fit in just as well.