The 18 HP is from two rounds where Aggron's damage taken was not subtracted. 37 from two rounds ago and 18 from last round.
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
NECTURNA uses Horn Leech
Crit: 6250 (625)
Damage: (8+3+9-11)=9
Recover: 4.5
-11en
AGGRON uses Head Smash
Hit: 8966 (8000) NO
-11.2en
2ND ACTION
NECTURNA uses Power Whip
Hit: 8913 (9500)
Crit: 1229 (625)
Damage: (12+3+9-11)=13
-7en
TL;DR
-22HP -11EN
-0HP -18EN
=======
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
TERRAKION uses Rock Slide
Hit: 5457 (9000)
Crit: 4963 (625)
Effect: 9907 (3000)
Damage: (8+3+7.5-6)=12.5
-5en
NECTURNA uses Power Whip
Crit: 5836 (8500)
Crit: 8514 (625)
Damage: (12+3+9-4.5)*1.5=29.25
-7en
2ND ACTION
TERRAKION uses Stone Edge
Hit: 4498 (8000)
Crit: 9552 (1250)
Damage: (10+3+7.5-6)=14.5
-6en
NECTURNA uses Leaf Blade
Crit: 2482 (1250)
Damage: (9+3+9-4.5)*1.5=24.75
-6en
3RD ACTION
TERRAKION uses Rock Slide
Hit: 5406 (9000)
Crit: 9481 (625)
Effect: 459 (3000) YES
Damage: (8+3+7.5-6)=12.5
-5en
NECTURNA flinched
TL;DR
-54HP -16EN
-40HP -13EN
=======
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
TERRAKION uses Rock Slide
Hit: 7829 (9000)
Crit: 116 (625) CRITICAL HIT!
Effect: 6521 (3000)
Damage: (8+3+3+7.5-6)=15.5
-9en
NECTURNA uses Leaf Blade
Crit: 5873 (1250)
Damage: (9+3+9-4.5)*1.5=24.75
-6en
2ND ACTION
TERRAKION uses Stone Edge
Hit: 8480 (8000)
Crit: 1888 (1250)
Damage: (10+3+7.5-6)=14.5
-6en
NECTURNA uses Power Whip
Hit: 3202 (8500)
Crit: 8602 (625)
Damage: (12+3+9-4.5)*1.5=29.25
-7en
TL;DR
-54HP -15EN
-30HP -13EN
=======
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
NECTURNA uses Super Fang
Hit: 4138 (9000)
DamagE: 29
-17.5en
BLISSEY uses Substitute
-24en
2ND ACTION
NECTURNA uses Soak
-8en
BLISSEY uses Toxic
Hit: 3381 (9000)
-7en
NECTURNA is TOX -1HP
3RD ACTION
NECTURNA uses Power Whip
Hit: 4035 (8500)
Crit: 4231 (625)
Damage: (12+3+9-1.5)=22.5
-7en
BLISSEY uses Sing
Hit: 501 (5500)
-5en
!roll 3=2
NECTURNA is TOX -1HP
TL;DR
-54HP -36EN
-2HP -33EN
=======
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
NECTURNA Zzz
BLISSEY uses Soft Boiled
+20HP
-15.5en
NECTURNA is TOX -2HP
2ND ACTION
NECTURNA Woke Up!
Uses Vine Whip
Crit: 1237 (625)
Damage: (4+3+9-1.5)=14.5
-2en
Dummy borke
BLISSEY uses Flamethrower
Crit: 5896 (625)
Effect: 8607 (2000)
Damage: (9+6-7.5)*1.5=11.25
-7en
NECTURNA is TOX -2HP
3RD ACTION
NECTURNA uses Power Whip
Hit: 7593 (8500)
Crit: 3231 (625)
Damage: (12+3+9-1.5)=22.5
-7en
BLISSEY uses Ice Beam
Crit: 4413 (625)
Effect: 9154 (2000)
Damage: (9+6-7.5)*1.5=11.25
-7en
NECTURNA is TOX -2HP
TL;DR
-3HP -30EN
-29HP -9EN
=======
Battle Cals said:=======
Crit is lower than (#), Hit is higher than %, effect is lower than %
1ST ACTION
NECTURNA uses Soak
-8en
BLISSEY uses Copycat
[Soak]
-10en
NECTURNA is TOX -3HP
2ND ACTION
NECTURNA uses Horn Leech
Crit: 3704 (625)
Damage: (8+9-1.5)*1.5=23.25
Recover: 11.625
-11en
BLISSEY uses Counter
Damage: 34.875
-17.625en
NECTURNA is TOX -3HP
3RD ACTION
NECTURNA uses Horn Leech
Crit: 1468 (625)
Damage: (8+9-1.5)*1.5=23.25
Recover: 11.625
-15en
BLISSEY uses Counter
Damage: 34.875
-17.625en
NECTURNA is TOX -3HP
TL;DR
-47HP -50EN
-56HP -34EN
=======