OOC: There is no back of the book, the magma hurler is listed as CR 3 in the stat-block. CE is still at CR 3 while N is at CR 5. Normally the Mini Handbook creatures roll over and die as soon as you touch them, I don't remember a previous example where the creature was a munchkin. I think the designers thought that the rock wouldn't hit very often, because there is a wide range between its ranged 'to hit' and its melee 'to hit'. It only hit the guttersnipe once with the rock, but the ooze is much easier to pick on. But I admit the damage is nasty.
Round 386: Gaylord steps to 35N5E, spits up a rock, and throws it. It hits (rolled 8) for another 25. The ooze has 40 hp left.
Round 386: Gaylord steps to 35N5E, spits up a rock, and throws it. It hits (rolled 8) for another 25. The ooze has 40 hp left.