Step 1
Skarmory used Sleep Talk!
-3 EN
Skarmory called Aerial Ace!
-4 EN
Crit: No (511)
(7 - 4+ 6 + 3) + 16 = 28 DMG
[Sleep] Skarmory healed 5 HP, 3 EN.
Dratini used Thunderbolt!
-7 EN
Crit: No (128)
It's super effective!
(5 - 5 + 9)*1.5 + 4 = 17.5 ~ 18 DMG
Step 2
Skarmory used Snore!
-3 EN
Crit: No (515)
Flinch: No (415)
(3 - 4 + 5) = 4 DMG
[Sleep] Skarmory healed 5 HP, 3 EN.
Skarmory woke up!
Dratini used Thunderbolt!
-7 EN
Crit: No (160)
Para: No (376)
It's super effective!
(5 - 5 + 9)*1.5 + 4 = 17.5 ~ 18 DMG
Step 3
Skarmory used Iron Head!
Crit: Yes (23)
Flinch: No (260)
-6 EN
(8 + 3 + 7 - 4) + 16 = 30 DMG
Dratini fainted...