Fire Ground Type stealth rock variant that works similar to how spikes work. You can have up to three layers and normal damage (with three layers) is 25%, super effective 50%, and quad weakness is OHKO.
Shedinja's wonder guard now also protects it from entry hazards, weather, and all status conditions. This entry hazard is given in a TM.
New dragon type weather that increases the power of dragon type moves by 1.5x increases attack stat by 30%, and removes all immunities to dragon type attacks.
Ghost types now have +1 priority on all of their attacks.
New legendary Ghost/Normal type with the ability Time Split that allows it to attack twice with two different moves in the same turn, the first move gets +6 priority. Has high special attack and good defense/special defense/HP.
Ferrothorn, Fortress, and Deoxy now have a new ability which prevents pokemon from removing their entry hazards or leech seeds (even when switching, the damage still takes effect and so does the healing you receive.) Each learn the Fire/Ground type entry hazard mentioned earlier as well.
Ground type attacks are now super effective against flying types if the flying type some how loses immunity to ground attacks. Gravity also lasts for the rest of the match and increases your teams speed by 1 stage for the rest of the match.
