Background
Rolls
Pod attack - (1D20+5)
(14) + 5 = 19
Pod damage - (1D8+3)
(7) + 3 = 10
Also, it can attack and grapple at the same time? I'm assuming the "stuck" you used means that it's wrapped around me, not the sticky stuff, cause it's not in a sticky form, right? Sorry, just trying to wrap my mind around this correctly (much as I think it's wrapped around me).
Also, I'm adding a Stone's Endurance roll as my reaction.
Rolls
Free myself (not sure which modifier, so I'll leave off and you can apply the appropriate one) - (1d20)
(4) = 4
Stone's Endurance - (1d12)
(3) = 3
It only attacks. The grapple is not an attack. The stickiness is an innate ability which imposes the CONDITION grappled. You're stuck. Aren't rules fun!?!
Freeing yourself is a straight (no proficiency) strength check against, in this case its stickiness (usually against another's strength)
So where are you on hp with the stones endurance, i'm lost. lol
It takes it's pod and attacks again.
Rolls
pod attack - (1d20+5)
(11) + 5 = 16
pod attack advantage - (1d20+5)
(20) + 5 = 25
So, the mimic is sticky in both object form and blob form? It's only unsticky when transforming between the two? Or is it that a psuedopod is sticky, regardless. Just trying to understand. You know, from beyond the grave.
Your lack of understanding of 5e death rules are expected since your village did not see tragic death much. You didn't receive enough damage to take you to negative max hp value, at which point you die. You only went unconscious and have 0 hp. You now have to make 6 death/save throws at d20 without any mods since everyone is the same in death. The DC is average - 10. Death is so fair. If the rolls in order get you three saves before you get three fails then you don't die. If you get three fails first, well... natural 20 is counted as regaining 1 hp. natural 1 counts as two fails.
Good luck!
Rolls
The will - (1d20)
(6) = 6
to live - (1d20)
(20) = 20
is strong. - (1d20)
(15) = 15
I will - (1d20)
(1) = 1
defeat this - (1d20)
(5) = 5
cursed mimic! - (1d20)
(20) = 20
Rolls
Attack - (1d20+3)
(7) + 3 = 10
Damage - (1d8+1)
(5) + 1 = 6
Rolls
Attach - (1d20+3)
(16) + 3 = 19
Damage - (1d8+1)
(6) + 1 = 7
Athletics check to see if I'm fast enough? - (1d20+5)
(17) + 5 = 22
Your second arrow hits, doing 7 damage. He is 25' from you.
Rolls
DEX save for AoE - (1d20+3)
(9) + 3 = 12
Rolls
Attack - (1d20+3)
(6) + 3 = 9
Damage - (1d8+1)
(4) + 1 = 5
The net pulls back together and transforms back into its amorphous blob form.