When choosing a finisher, the cards I would stay from are those that don't do anything to help you regain control of the game when you are losing it
Ungraded & graded values for all Pokemon TCG Chilling Reign Pokemon Cards
Each of these cards has an equal chance of appearing when opening a Promo Pack, so the Gible is just as likely as the Cherrim it's a 20% chance for each
Used as a blunt instrument it can be Nevinyrral's Disk and wipe out the whole board, and if you can show your hand via a small investment you can do it at any time with confidence that nothing on board is likely to be too expensive to take out
That means the first ability on Deathrite Shaman doesn't count (since it targets something), and the +1 on Xenagos, the Reveler doesn't count, since loyalty abilities can't be mana abilities
Next came alternate reality present