+35 kg for +409 HP seems a great deal 
(compared to the Rolling Beasts - one of the best “legs” around)

Compared to a Platinum Plate …
40 kg … 315 HP
5 kg less + 94 HP … the new best item 
And the cannot-walk-or-jump thing can easy be ignored, with that high HP and a lot of moving items (also with double use) 

The reason why certain players - again - cannot get this item … so many accidents 

Solution :
repeat this item Portal, this time with really higher drop rates, to give ALL players the chance to get them 
