gengar dp1 vs bonsly dp1

[pikachu rules]

so heres the the question if i use life drain with gengar to put him 10 away from ko and then he fliped heads last turn on bonsly is he at 40 or 10

 

[mtjimmer]

Life Drain does not do damage, it places damage counters - Life Drain is unaffected by Bonsly's Fake Tears.