Huh, I missed deadly dodge in your stat block, that's pretty neat.
Maintain Grapple 1d20+23 : 16 + 23, total 39
Piercing Damage vs Razor 1d12+7 : 7 + 7, total 14
Chomp vs Tanya 1d20+14 : 13 + 14, total 27
Piercing Damage vs Tanya if hit 1d12+7 : 3 + 7, total 10
[roll]{Free Grab if it hit}1d20+18[roll]
Chomp vs Tiny 1d20+12 : 1 + 12, total 13
< Includes -2 for Cier's Snipe
Piercing Damage vs Tiny if hit 1d12+7 : 11 + 7, total 18
[roll]{Free Grab if it hit}1d20+18[roll]
Tail vs Tiny 1d20+6 : 7 + 6, total 13
< Includes -2 for Cier's Snipe
Bludgeoning Damage vs Tiny if hit 1d10+7 : 5 + 7, total 12
Chomp vs Slake (Charge) 1d20+16 : 6 + 16, total 22
Piercing Damage vs Slake if hit 1d12+7 : 10 + 7, total 17
[roll]{Free Grab if it hit}1d20+18[roll]