If Gengar uses "Shadow Room" against a Lv.X Pokemon that has no Poke-POWER, but the card underneath the Lv.X *does* have a Poke-POWER, does "Shadow Room" place three or six damage counters?
The Lv.X Pokemon has the Poke-POWERs and Poke-BODYs from the card underneath it, so Shadow Room would place six damage counters in this situation.
Source: PUI Rules Team (2008-11-20)

Relevant cards

Note: All applicable cards may not be listed below.
DP7_18