If I'm allowed to rate it, this is what I would say:
Stealth rock should be affected by type. For example, the defending pokemon has a +30 weakness to rock. This means, it takes 50 damage. If it has a -10 resistance, it takes 10 damage. That's how the real stealth rock works.
Stealth rock should be affected by type. For example, the defending pokemon has a +30 weakness to rock. This means, it takes 50 damage. If it has a -10 resistance, it takes 10 damage. That's how the real stealth rock works.