The blow sinks the hammer in and chain has trouble removing it...
Rolls
Warhammer (2hand) - (1d20+4, 1d10+3)
1d20+4 : (6) + 4 = 10
1d10+3 : (9) + 3 = 12
Str - Save DC 12 - (1d20+2)
(2) + 2 = 4
Warhammer (2hand) - (1d20+4, 1d10+3)
1d20+4 : (6) + 4 = 10
1d10+3 : (9) + 3 = 12
Str - Save DC 12 - (1d20+2)
(2) + 2 = 4
Burning Hands save dc = 13 - (3d6)
(411) = 6
Dexterity check Caustic - (1d20-2)
(18) - 2 = 16
Dexterity check Sticky - (1d20-4)
(12) - 4 = 8
Dexterity check Sticky - (1d20-4)
(4) - 4 = 0
Dexterity check Shifting - (1d20-1)
(2) - 1 = 1
Longbow - Attack - (1d20+5)
(4) + 5 = 9
Longbow - Damage - (1d8+3)
(4) + 3 = 7
Scimitar - (1d20+6, 1d8+4)
1d20+6 : (8) + 6 = 14
1d8+4 : (7) + 4 = 11
Bonus: Scimitar - (1d20+6, 1d8+4)
1d20+6 : (15) + 6 = 21
1d8+4 : (8) + 4 = 12
Strength Checks DC: 12 - (1d20-1, 1d20-1)
1d20-1 : (2) - 1 = 1
1d20-1 : (5) - 1 = 4
Sticky Slime (blue) Pseudopod to hit (Charun) - (1d20+3)
(5) + 3 = 8
Sticky Slime (blue) Pseudopod damage (Charun) - (1d4+1)
(2) + 1 = 3
Sticky Slime (green) Pseudopod to hit (Scylla) - (1d20+3)
(2) + 3 = 5
Sticky Slime (green) Pseudopod damage (Scylla) - (1d4+1)
(4) + 1 = 5
Caustic Slime Pseudopod to hit (Scylla) - (1d20+4)
(19) + 4 = 23
Caustic Slime Pseudopod damage (Scylla) - (1d6+2)
(2) + 2 = 4
Shifting Slime Pseudopod to hit (Charun) - (1d20+4)
(1) + 4 = 5
Shifting Slime Pseudopod damage (Charun) - (1d6+2)
(3) + 2 = 5
Charun Silvercrest: Str - Save - (1d20+2)
(13) + 2 = 15