waht are some noteworthy steel types i should add?
Natorei
Steel Thorns
Left Overs
Careful/Impish
252 HP, Rest of EV's into defense of your choice
Power Whip
Thunder Wave/Spikes/Stealth Rock
Leech Seed
Protect/Spikes/Stealth Rock
Typical Wall set. He resists the grass/electrric attacks aimed at the waters in a raindance team, and also benefits from the decrease in damage from fire type attacks. Another basic walling set, as with leech seed and left overs, he can get a few layers of spikes up with out dropping quickly at all. Thunderwave is also a great choice for incoming switches, although it really isn't THAT necessary as if you are running swift swimmers you are most likely going to outspeed the enemy anyways.
Foretress
Sturdy
Left Overs
Careful/Impish
252 HP, Rest of EV's into defense of your choice
Spikes/Toxic Spikes
Stealth Rock/Toxic Spikes
Earth Quake
Rapid Spin/Gyro Ball
This is another typical wall who sets spikes and stealth rock up. Nothing too new or different compared to his role in the previous generations. Set up hazards, and rapid spin the enemies hazards away. As noted, the only real difference from this set compared to the previous set is the fact that explosion is missing. Due to its nerf, it most likely is more useful to set up another layer of spikes.
OR
Foretress
Sturdy
Left Overs
Careful/Impish
252 HP, Rest of EV's into defense of your choice
Reflect
Light Screen
Earth Quake
Spikes/Stealth Rock/Rapid Spin
Basically the same idea of the previous set except instead of setting up just some spikes, getting up a reflect and light screen as well. Can really help other rain stall pokemon, such as zapdos or parasect getting their subroost or subseed combo going.