I take it that the last two hobgoblin's don't have cover from my angle. Moving up to my full 30ft to close range: 20 ft
Rolls
Dart - (1d20+4)
(20) + 4 = 24
Dart damage - (1d4+2)
(1) + 2 = 3
Crit - (1d4)
(3) = 3
Dart - (1d20+4)
(20) + 4 = 24
Dart damage - (1d4+2)
(1) + 2 = 3
Crit - (1d4)
(3) = 3
Agonizing Eldritch Blast Attk vs Hob fighting Cassandra - (1d20+6)
(4) + 6 = 10
Agonizing Eldritch Blast damage - (1d10+3)
(5) + 3 = 8
Agonizing Eldritch Blast Attk vs Entangled hob - (1d20+6)
(1) + 6 = 7
Advantage Agonizing Eldritch Blast Attk vs Entangled Hob - (1d20+6)
(11) + 6 = 17
Agonizing Eldritch Blast Damage vs Entangled Hob - (1d10+3)
(2) + 3 = 5
attk 1 - (1d20+6)
(17) + 6 = 23
dmg 1 - (2d6+3)
(46) + 3 = 13
attk 2 - (1d20+6)
(3) + 6 = 9
dmg 2 - (2d6+3)
(16) + 3 = 10
Massive Damage - (1d20+1)
(13) + 1 = 14
Massive Damage - (1d10)
(5) = 5
Stun - (1d20+1)
(17) + 1 = 18
Hobgoblin Leadership - (1d4)
(1) = 1
Captain Greatsword Attack 1 vs Feng - (1d20+4)
(15) + 4 = 19
Damage - (2d6+2)
(43) + 2 = 9
Captain Greatsword Attack 1 vs Feng - (1d20+4)
(13) + 4 = 17
Damage - (2d6+2)
(42) + 2 = 8
Martial Advantage on Hit - (3d6)
(155) = 11
Hobgoblin Longsword Attack on Feng - (1d20+3)
(10) + 3 = 13
Damage - (1d8+1)
(5) + 1 = 6
Martial Advantage on Hit - (2d6)
(52) = 7
Thorn Whip Melee Spell Attack - (1d20+7)
(17) + 7 = 24
If not: damage - (2d6)
(13) = 4
Agonizing Eldritch Blast Attk vs Hob captain (1st bolt) - (1d20+6)
(7) + 6 = 13
Agonizing Eldritch Blast damage - (1d10+3)
(6) + 3 = 9
Agonizing Eldritch Blast vs Hob captain (2nd bolt) - (1d20+6)
(9) + 6 = 15
Agonizing Eldritch Blast damage (2nd bolt) - (1d10+3)
(9) + 3 = 12
Cure Wounds 2nd level (2d8 + spellcast modifier 6(or is it 3) and life domain 4) - (2d8+10)
(71) + 10 = 18
attk 1 - (1d20+6)
(7) + 6 = 13
dmg 1 - (2d6+3)
(55) + 3 = 13
attk 2 - (1d20+6)
(19) + 6 = 25
dmg 2 - (2d6+3)
(65) + 3 = 14
Spearhead - (1d20+7)
(7) + 7 = 14
Haft - (1d20+7)
(3) + 7 = 10
Spearhead damage - (1d8+4)
(5) + 4 = 9
Haft damage - (1d8+4)
(3) + 4 = 7
Intimidation on the prisoner hobgoblin (in case he isn't intimidated enough) - (1d20+6)
(13) + 6 = 19
Cure Wounds on hobgoblin - (1d8+10)
(6) + 10 = 16
Stealth (advantage for being in the forest) - (1d20+1)
(12) + 1 = 13
Stealth (advantage for being in the forest) - (1d20+1)
(11) + 1 = 12
Perception - (1d20+7)
(20) + 7 = 27
Perception - (1d20+3)
(18) + 3 = 21
Stealth - (1d20+7)
(10) + 7 = 17