Adeptus Custodes

Trample
While Adeptus Custodes is on the battlefield
and if during this or last turn Emperor of
Mankind has been dealt damage, Adeptus
Custodes gains Trample, +1/+2 and you also
gain life equal to damage dealt to the Emperor of
Mankind.
How can a man be happy if he cannot serve his lord
with his whole heart?
-Litany of the Adeptus