Grindylow (western 1): trip (1d20+4)[23] then spear (1d20+2)[16] for (1d6+1)[3]
Grindylow (western 2): trip (1d20+4)[17] then spear (1d20+2)[14] for (1d6+1)[4]
Grindylow (southern 1): trip (1d20+4)[13] then spear (1d20+2)[16] for (1d6+1)[5]
Grindylow (southern 2): trip (1d20+4)[16] then spear (1d20+2)[22] for (1d6+1)[4]