Is it true that the % bonus life to golems given by the Golem Mastery skill is only based off of the level one golem's life? So if you've invested 20 points in a golem, adding points to Golem Mastery to up their life is basically pointless? (don't worry, I haven't F-ed over a character, but figured I'd ask before I do f-over a character :wink3: )
Sort of.
Yes, Golem Mastery only boosts base golem life. Since 3 of the 4 golems have a fixed base life total (Blood, Iron, and Fire), points in Golem Mastery only boost the slvl1 Golem Life (actually, a little bit less than the slvl 1 Golem life if you have a point in Blood Golem, since that will also boost base life). The Golem Mastery synergy works additively with the Blood Golem synergy (so that if you have +100% life from Golem Mastery and +50% life from Blood Golem, that's +150% life total, or 2.5 times base golem life).
The exception is Clay Golem- Clay Golem is the only golem whose life scales with his level (so a slvl 10 Clay has more life than a slvl 1 Clay). In this case, since his base life is constantly rising, Golem Mastery will keep boosting a constantly rising amount (which is how Clay Golems can achieve such ridiculous life totals- imagine if the Lycanthropy life bonus and the Battle Orders life bonus worked multiplicatively and that's what you have going on with Gumby).
Anyway, as to whether Golem Mastery is worthless... as I said, all golems except Clay have fixed life, and Blood Golem is a weak synergy... so in that respect, Golem Mastery is really the best (and pretty much only) way to boost your golem's life. If you want your golems to be tougher, Golem Mastery is hardly worthless. I mean, BO only boosts your base life, but I don't think anyone would really call BO useless here. Doubling something's life is doubling something's life.
I'd rather have a slvl 1 Fire Golem/slvl 20 Mastery (or slvl 1 Iron/20 mastery) than a slvl 20 Fire/Iron paired with slvl 1 Mastery. It'll be a ton more durable. In fact, the only golems potentially worth boosting past slvl 1 (in my opinion) are Blood (to boost its leech) or Clay (to boost its life and slow).