To all in your opponent Q your target then R. W, AA then R to knock the elemental into enemies, then AA and E.
When your target is next to your Q or a wall, use R and then E them. R again to knock the enemy up, then AA,
For an easier all in, use R and then Q your target, then R again. AA then W and AA again. E to knock the enemy up, then AA to finish up.
When in melee range, AA then Q. AA again, then E and AA.
Quickly trade by using AA, W and AAing once more.
You can also trade by using Q, then W and an AA. E your target, then AA again.
To trade with your opponent, Q them. When the pillar erupts E and AA, then follow up with W and AA again.
Your standard trade is to Q your target, then W and AA.