If you line dominates you in early game,you can buy Shen

Ulti-you farm

Use Q for grab enemy,and you team kill him

Pros
1. Can grab
2.Can AP,AD,support
3.Small coldown for ult
4. Mana barrier
Cons
1. Hard.
2. Need more mana for barrier
3.Small chanse for ks(steal) kill ))

first combo
if you are not very sure that the grab
1. Use q
2.if you grab,use e and atack
3. use r and w

combo two
if you know,you grab 100% grab him
1.use e
2. use w
3 graaaaaab,use q
4 and final(if you grab him) use r