It's easy to explain:

#1 Stand back (defensive)
#2 throw Sapling's :)

add:

#3 try not to waste them on minions

Use Twisted Advance to hit and shackel enemy-champ

Don't waste your time on Minion killing with meele attacks (only for using your passive 7% lifegain).

you dont need any Minions because you could desturb other champs and easy get many kills.

Important:

Try to focus the carry's and swichys because Sapling's will do great dmg to them^^

Preparing :

Use your Ulti to create an Fighting-Area-Restriction.
- dont fire it up for 1 char or for only tanky chars
-- you dont do any dmg to them

Sometimes the Preparing-time is to slow to set up your ulti.

Fight [SetUP]:
if you hadn't time to set up your ulti.
-> DO IT NOW!
-- the perfect way is to set it up in the direction where the group will move.

e.g.:
#1 Your team is LOW..-> they will move were your team will move .. so set it up behind your team
#2 Your team Ragessssss -> Set it up behind them!


try to wait before fire it up.
used it to grand your team the win.

Fight [pwnding!]:
#1 Throw a Sapling in the Group to do some dmg.
#2 use "Twisted Advance" to charge into the Group
- meanwhile your sapling is exploded and you have 6 seconds cooldown
#3 use "Arcane Smash" in the Direction of the Most Enemy's
- YOur Sapling and your other 2 Cast dealed some pretty heavy dmg
#4 Fire Up Your Ulti.
---
(If Your DMG-Output was hard as suggested the enemys try to ran away)
#5 Throw a New Sapling to the flewing group (try to throw it in front of them).
#6 Use "Twisted Advance" again to follow them and pwnd! them.

Happy Fragging :)

Greater Mark of Insight (9x) = 3690 EP
Greater Seal of Replenishment (9x) = 1845 EP
Greater Glyph of Potency (9x) = 3690 EP
(you could also exchange Potency with Greater Glyph of Insight to get 5 more MagicPen cost : 3690 EP)
Greater Quintessence of Insight (3x) = 3075 EP

So you need : 12300 EP
(with Mao. 18600)


I Hope i Could help you
So Long KikiTheOne