Bought the $5 golden hog pack, which had 3 builder potions, fairly worth it. I would personally value each builder potion as 250 gems and the pack costs $5. That amount normally gives 500 gems and the pack has a free golden hog and shovel too, so its quite decent.
Now where to put the hog?
This army is basically free and does quite well. Too bad I only have lvl1 hogs but using power potions mean that I get free lvl7 hogs. This makes farming really easy because hogs can tear through dead bases fairly easily with almost free heal spells as well.
This means that I need to use a training potion together as well to make sure I get the full value of the power potion.
No picture of my base but the only upgrades I have are some cheap archer towers/cannon along with gold collectors