Why anybody would use this pathetic Psychic type over Abra is beyond me. Poor offensive stats and a poor movepool.
Drowzee (M) @ Eviolite
EVs: 212 Atk / 76 Def / 196 SDef
Brave Nature (+Atk, -Spd)
- Trick Room
- Drain Punch
- Psycho Cut
He has poor enough Speed for Trick Room. Although there are better Pokemon to use with Trick Room, since you are using Drowzee already... Reflect helps up the team's (and Drowzee's sub-par) defense stat. Even with Eviolite the standard for Defense has become much higher, as Pokemon like Meditite, Misdreavus, and Tangela have been unleashed. Drain Punch provides type coverage and much needed healing, as the downside to having Eviolite is a lack of Oran Berry healing. Psycho Cut is more reliable STAB than Zen Headbutt, which more than makes up for a lower base power. The EV spread gives it max attack and Sp Def, plus some defense, which isn't maxed out as Reflect is going to boost your defense. A brave nature to further increase your rather poor Attack, while also lowering your Speed for Trick Room.