Wizard's trebuchet, CrTe 4
R:Sight, D:Inst, T:Ind
This spell creates a large blob of viscid clay, as large across as a man with his outstretched limbs (about two and a half paces), up to 100 paces above any target within sight. The blob lasts only a few heartbeats before dissolving back into nothingness, but that's more than enough to crush whatever it may fall upon. This spell must be Aimed; but if used to attack large, immobile or slow-moving structures like buildings or ships it is quite difficult for the caster to miss.
Base 1 [Create a base individual of clay, 10 cubic paces], +3 Sight. Note that D:Inst can last for up to a round.