"Prime Material Dragon" can allow you to gain Life Points from this combo instead of taking damage. However, it is also valid remember that if you have this face-up "Prime Material Dragon" on the field, your opponent will also gain Life Points in your End Phase, instead of taking damage. To prevent it, you can use either 1 "Bad Reaction to Simochi" or 1 "Nurse Reficule the Fallen One". The effect of "Prime Material Dragon" would turn the damage into Life Points, but "Bad Reaction to Simochi" Or "Nurse Reficule" Will turn that amount into damage again.
Another good card to use with this combo is "Des Wombat", as it reduces any effect damage to your Life Points to 0, while your opponent still keeps taking the damage.