2006-09-25 : If an effect says Foriysian Totem can’t block, then it can’t block any creatures.

2006-09-25 : The third ability normally lets Foriysian Totem block two creatures. If another effect also lets it block an additional creature, the effects are cumulative.

2008-08-01 : A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.