Mule

Stubborn horse/donkey cross-breeds used as beasts of burden.

AC7 [12], HD2 (9hp),
Att 1 × kick (1d4) or 1 × bite (1d3), THACO 18 [+1],
MV 120’ (40’), SV D14 W15 P16 B17 S18 (NH),
ML 8, AL Neutral, XP 20, NA 1d8 (2d6),

• Tenacious: Can be taken underground, if the referee allows it.
• Defensive: May attack if threatened, but cannot be trained to attack on command.
• Carry loads: Up to 2,000 coins unencumbered; up to 4,000 at half speed.

Source: Classic Fantasy