by Jarandis » Sun Feb 07, 2010 7:01 pm
I'm fairly certain the relevant rule is this
609.2. Effects apply only to permanents unless the instruction’s text states otherwise or they clearly can apply only to objects in one or more other zones.
Example: An effect that changes all lands into creatures won’t alter land cards in players’ graveyards. But an effect that says spells cost more to cast will apply only to spells on the stack, since a spell is always on the stack while a player is casting it.
Tribal Golem has static abilities that generate continuous effects upon it .
'As long as you control a beast' ...'This has trample'
As it is not an effect that must apply in a specific zone (e.g. spells on the stack) and it doesn't explicitly state otherwise then the ability will only apply to Tribal Golem as a permanent, not as a card in a Graveyard