Thank you all for participating. Meany of you suggested:
1. Crossbow.
2. Blowpipe.
3. Throwing Knifes.
4. Bows.
5. Slings.
6. Spears.

Based on these weapons I have been thinking of multiple scenarios in which he could make/acquire the weapon.

Crossbows can't be made easily and lack of materials and ponies can't use them. Only Griffons or Minotaurs have the capability and biology to use one.

Blowpipe is a nice idea, practical and useful for taking down targets discretely.

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