Turn 1:

Caribolt absorbed sunlight!

Reuniclus Chilled! (2 Chills remaining)

Reuniclus restored +12 EN!

Reuniclus restored +6 HP!

Caribolt used Solar Blade!
Crit (1, d24): 16 (No crit)
(13*1 + 3 + 0 + 2 - 1)*1 + (0 - 0)*2 + 4 = 21
-8 EN
Turn 2:

Caribolt used Bullet Seed!
Hits (1 - 2: 2 hits, 3 - 4: 3 hits, 5: 4 hits, 6: 5 hits): 1 (2 hits), Crit (2, d24): 12, 13 (No crit, No crit)
(6*1 + 3 + 0 + 2 - 1)*1 + (0 - 0)*2 + 4 = 14
-6 EN

Reuniclus used Pain Split!

Reuniclus +25 HP!

Caribolt -25 HP!
-(6 + (84 - 25)/2) = -35.5 => -36 EN
Turn 3:

Caribolt absorbed sunlight!

Reuniclus used Pain Split!

Reuniclus +3.5 => +3 HP!

Caribolt -3.5 => -4 HP!
-(6 + (59 - 52)/2 + 4) = -13.5 => -14 EN

Caribolt used Solar Blade!
Crit (1, d24): 8 (No crit)
(13*1 + 3 + 0 + 2 - 1)*1 + (0 - 0)*2 + 4 = 21
-8 EN
Round Summary

Caribolt HP: -25-4 = -29

Caribolt EN: -8-6-8 = -22

Reuniclus HP: +6-21-14+25+3-21 = -22

Reuniclus EN: +12-36-14 = -38