Rolls are out of 600. Crit is less than, effect is less than.
179, 412, 247, 509, 569, 348, 340, 78, 402, 506, 268, 7, 562, 93, 461
1st action
Tyrantrum used Fire Fang!
-3 EN
Hit: 179 (570) Yes
Crit: 412 (300) No
Burn: 247 (60) No
Flinch: 509 (60) No
Damage: (7[BAP]+4[Jaw]-1[stat diff])*1.5 = 15
Melmetal used Double Iron Bash!
-3 EN
Crit: 569 348 (25) No
Damage (main hit): (6[BAP]+3[STAB]+3[IF]+2[stat diff])*1.5 = 21
Damage (extra hit): (6[BAP])*1.5 = 9
Leftovers +3 HP Melmetal
Grassy Terrain +2 HP Tyrantrum
Grassy Terrain +2 HP Melmetal
2nd action
Tyrantrum used Fire Fang!
-3 EN
Hit: 340 (570) Yes
Crit: 78 (300) Yes
Burn: 402 (60) No
Flinch: 506 (60) No
Damage: (7[BAP]+4[Jaw]+3[crit]-1[stat diff])*1.5 = 19.5 ==> 20
Melmetal used Double Iron Bash!
-3 EN
Crit: 268 7 (25) One
Damage (main hit): (6[BAP]+3[STAB]+3[IF]+2[stat diff])*1.5 = 21
Damage (extra hit): (6[BAP]+2[crit])*1.5 = 12
Leftovers +3 HP Melmetal
Grassy Terrain +2 HP Tyrantrum
Grassy Terrain +2 HP Melmetal