In RBY, the Grass/Psychic typing gave him a lot of resistances, but a lot of weaknesses as well. Luckily for Eggy, his weaknesses were practically nonexistent in the metagame (save Ice, which was and still is everywhere). His resistances, on the other hand, include Electric and Ground, two of the most common attacking types. Combine that with the fact that his excellent Special pulled double duty as Special Attack and Special Defence, and you have one of the best Pokémon in the game. His speed was decidedly mediocre, but all his other stats were on the better side of average. From what I understand, every RBY Exeggutor runs Sleep Powder, Psychic and Explosion. What is generally the better move for the last slot?