Which eyeshadow brush is best for blending?

For me this is the most crucial part of eye make up and i need a good brush. Could someone direct me to a good brush please? Thankyou





Oh and which brush is best for smudging eyeliner? I dont like hard black lines, i want to blend it in to the shadow whilst still maintaining a line. TYWhich eyeshadow brush is best for blending?
I like to use a regular blush bruch to blend my eyeshadow together on my lids