Template:Trees

Level	Power
1	{{{Power1}}}{{ #if: |, }}{{ #if: |, }}
2	{{{Power2}}}{{ #if: |, }}{{ #if: |, }}
3	{{{Power3}}}{{ #if: |, }}{{ #if: |, }}

Usage

{{Template:Trees 
 | Power1    = 
 | Power1-2  =
 | Power1-3  =
 | Power2    = 
 | Power2-2  =
 | Power2-3  =
 | Power3    = 
 | Power3-2  =
 | Power3-3  =
}}