I like to think of Golem as having some properties of the Throne Room, as it allows you to gain +Actions without using them right away. In a game with no cards with +2 Actions, the Golem can be a good way to get this, just play Golem with enough non-terminals and you're there. It is also a good way to cut through the clutter in a game without good trashing, or even a way to speed up reshuffling of your deck. If you hit a card that gives you +Cards first, even better. This is something that can only happen with TR/KCing a TR/KC---draw cards with a terminal action, and still have an action to play. I've even experimented buying Counting House, a card that I never would otherwise buy, with the Golem in play. It's also not a bad counter against hand-reduction attacks, or building up your deck after playing an Outpost. Now, there are some actions that conflict. In addition to what you mention, cards that force you to trash something late in the game come to mind, such as the Trade Route or worse, the Trading Post. You may also get stuck playing a Sea Hag with no curses.