He will be. At first legendary 3 packs were so common, I thought no store would get rid of them. However, after about a month or 2, they skyrocketed in price on Ebay, because no one could find them. Expect the same with Trigg, because he will go in moratorium for a few months like the 3 pack.
I am not sure about that. The legendary packs were only common when every figure was common. This was before Christmas when you could walk into any store and literally every figure was hanging on the rack and there was no pressure to buy. The legendary packs wasted so much shelf space then.
I'm very glad I got into the game in early November. It would be a lot of stress and extra money to get into the game after Christmas.