Killed last night 9/18/03 fairly easy with 2 Clerics, Bard, War, Druid and Wiz. Dropped cloak, rune and a spec, was near the other frogs but closer to middle.
Have spawned this guy many times over, usually from Ruins group or ledge groups. He's a trap spawn and about spawns 1/3 of the time (about a 18 - 24 minute timer on trap). The other that spawns in the spot is a baby Young frog. I've seen the named frog drop the ball of clay probably 1/5 of the time, usually dropping that cape which rots almost everytime.
Not sure if he was nurfed or what, but I have kept count of Warlords I killed hoping to get Clay. Kill #43 and at cloak #43. Lots of Runes and specs, good if needed but dont, exp blows at lvl 70 but at least its not green kills. Would really like to know if it still drops or removed without telling us, 43 named seems high to me even if drop is rare.
Nov 10th update: Finally on my 51st Warlord it dropped the Ball of Golem Clay. So it does still drop but damn that was long haul !