OK, let's see:

Mist Ball: 5 PP, 14 stamps.
Stockpile: 20 PP, 4 stamps.
Mud shot: 15 PP, 5 stamps.
Growth: 20 PP, 4 stamps.
Growth: 20 PP, 4 stamps.
Withdraw: 40 PP, 2 stamps.
Spore: 15 PP, 5 stamps.
String Shot: 40 PP, 2 stamps.
Revenge: 10 PP, 7 stamps.
Heal Block: 15 PP, 5 stamps.
Slack Off: 10 PP, 7 stamps.
Wood Hammer: 15 PP, 5 stamps.
Healing Wish: 10 PP, 7 stamps.
Acupressure: 30 PP, 2 stamps.
Psychic: 10 PP, 7 stamps.
Camouflage: 20 PP, 4 stamps.
Water Spout: 5 PP, 14 stamps.
Brine: 10 PP, 7 stamps.
Horn Leech: 10 PP, 7 stamps.

That gives you a total of 112 stamps!