Elemental Ascendancy

Elementals you control get +1/+0 and Haste as
long as you control a red elemental
Elementals you control get +1/+0 and Flying as
long as you control a white elemental
Elementals you control get +0/+1 and Trample
as long as you control a Green elemental
Elementals you control get +0/+1 and
Ward {1} as long as you control a Blue elemental