First 5* (Mother North) pick and now roster in jeopardy

Glad I could help!
Defense formula looks good to me.
For titans I usualy use monochrome teams of the strong color (two or three 4* and the rest 3*, depends on what I got on that color). I wasn’t lucky enough to draw Wu so far. I usualy fight 5 or 6 * titans, use 5, sometimes 6 flags and my average score is 100 k + (low as 10k / flag, if tiles are bad, up to max 43k. That is usualy A and sometimes A+ class for my alliance)
I don’t have Rigard but I don’t see him as exceptional against titans. Against titans tile damage matters more than skill damage and Rigard does not have very high tile damage. His cleansing, which is so useful in raids and wars, is easily replaced against titans by a common small antidote vial.
I’m not very found of Li. I have her at 3/60, but compass shortage keeps her waiting there. Proteus and Boldtusk have compass priority right now. I’ll ascend Li after them, if something better won’t come along by then.