Chart shows the price of Booster Pack [Collector] at the end of each month going back as long as we have tracked the item.
However, seeing how weak other cards could be at the time, its worth the risk
Otherwise, put it onto the battlefield
That said, seven mana is a lot of mana for a creature that's not particularly hard to remove with spells and the Fallout 2 boss really needs to stick around to be fully worth the investment
However, fun as that sounds, I'm concerned it may wear thin when almost every box on that checklist remains starkly unchecked
For example, if the original creature spell had kicker and its kicker cost was paid, the copy will also be kicked