Ice:

Shards of Ice, Freeze Water, Ice Golems

Fire:

Fire Shards, Made of Fire, Fire Golems

Earth/Nature:

Earth Shards, Earthquake, Earth Golems

Water:

Tsunami, Whirlpool, Made of Water, Storms

Shadow:

Summon the Dead, Absorb Shadows of Others, Discover Ones Darkest Secrets

Wind:

Hurricanes/Tornadoes, Flight, Light as a Feather (transport via the breeze)

Poison:

Poison Saliva, Poison Shards

Electricity:

Electric Shards, Electric Storms, Lightning Bolts

 

(If there are any more "Natural" elements or ability suggestions, text me on Discord and I will add them. :3)