professor pokemon card Buy Professor's Research 85/86 Uncommon You may play only 1 Supporter card during your turn (before your attack) Pokemon Trading Card Game Celebrations

Psychic Frog, Key to the City, Harnfel, Horn of Bounty, Ultimate Green Goblin, and Chainer, Nightmare Adept round out the ways to discard, but there are certainly more every set

The cracked ice is a good one too

Double-Sleeve Friendly: Extra-deep pockets fit double-sleeved holos without bending

But the biggest boon seems to be the potential this card holds for the Terapagos ex archetype, which relies on cracking open the bench with Area Zero Underdepths, loading the bench, and then hitting for as much damage as possible with Terapagos ex's Unified Beatdown attack, which multiplies damage times the number of Pokmon on your bench