>>41670897The empty slot is fine. Worse would be a shit move that wastes a turn.
>>41670922It's the default Pidgeot learnset at that level with move 3 (Agility) overwritten by Sky Attack. It may be a typo or programming error by changing the learnset after creating this party. The code that sets the last Rivals movesets is also separate from the one that handles the gym leaders and the one that handles the E4. Everyone else uses the unmodified learnsets at the current level. It's just shitty programming by GF. Yellow fixes the learnsets of the E4 and rivial for the most part, but the real problem OP is too dumb to recognize is the AI being shit until GSC.