If you take a closer look at the casting cost of my creatures,
Sol ring does not help to cast many of them. Also, they have low power so they can go under the bridge. I own an artist-signed copy of
coastal tower, so it is in there for personal flavor reasons. If I owned a signed
Savannah and
Tundra, they would be in there too. But thank you for the suggestions. I may be adding Edric to draw more cards, that is why it has so many hard to block tiny creatures.