Aside from this, there are plenty of products to pick from when hunting down new cards
If you lose control of Kellogg before its last ability resolves, you won't gain control of the target creature at all
Whether its cheaply doubling up your big damage spell or getting a Tooth and Nail of your own (tipfirst creature to get when yours resolves is Draining Whelk), its one of those cards that will provide an endless supply of epic plays at your tables
Random Japanese SR:130
More than anything, these moments seem to be self-perpetuating, where everyone gets tremendously excited about one particular card, which creates demand, which raises the price, which exaggerates the rarity, which creates demand The next most expensive right now is the Latias ex at almost $200, then the gold card version of the Pikachu ex at $100, and that Hydreigon pictured above at about $95
Help them out a little with Pharika