By powering one up, your opponent is basically telling you you have to deal with this, or you lose. This is why, if your opponent has a Lycanroc-GX with enough Energy to attack, the best course of action is usually to either two-shot it or one-shot it with your own Dangerous Rogue GX
However, if you hold on to those Crystals and gain a hundred or so more, you can unlock the Premium Pass which grants more Crystals, Credits, packs, individual cards, and more
(4/18/2017) The mana value of a split card is determined by the combined mana cost of its two halves
Most Solemn Simulacrum's live an ignoble and short life, swiftly thrown in front of the nearest threat to chump block
Landcycling also triggers Rielle, the Everwise to add regular cycling to your landcycling