You can get the Whirldwind Cloak spell by buying it from Talvas Fathryon in Tel Mithryn after completion of “Wind and Sand”.

For 60 seconds, an enemy in melee range will be flung away from you. This spell can only be obtained if you have the Dragonborn DLC. To get the Frost Cloak spell you can buy the spell tome from Faralda at the College of Winterhold or from a Court Wizard after you have reached at least level 50 in Destruction. This spell does not injure followers or neutral NPCs like town guards.

Enemies in range will take 8 points of frost damage per second to health and stamina. With this spell you will be surrounded in a wall of frost for 60 seconds. To get the Flame Cloak spell you can buy the spell tome from Faralda at the College of Winterhold or from a Court Wizard after you have reached at least level 40 in Destruction. Enemies in range will take 8 points of fire damage per second and take on extra fire damage. With this spell you will be surrounded in a wall of fire for 60 seconds.

How to level destruction skyrim