The Monster Manual is meant to be a throwback to, well, the Monster Manual from days of yore: Apparently these really pop in foil, but we will see
Put X +1/+1 counters on target creature, where X is the number of lands you control
The catalogue is built from the open-source Pokemon TCG API and includes Charizard, Blastoise, Venusaur and the original 16 holos from Base Set, Shining Pokemon, Crystal Pokemon, every Pokemon-ex from Ruby & Sapphire through Power Keepers, Gold Star Pokemon, Delta Species, Diamond & Pearl + Platinum Lv.X, HGSS Prime + LEGEND, BW Full Art, XY Mega EX and BREAK, Sun & Moon GX, Sword & Shield V/VMAX/VSTAR, and Scarlet & Violet Illustration Rare / Special Illustration Rare chase cards
While it isn't the most valuable trainer card in this set, it still sells for a respectable amount
some stuff happened and we didn't
Moreover since they can enable Pendulum Summons, they can greatly facilitate the Tribute Summon of "Reactor Dragon" or "Hydra" and if "Gold" and "Silver Gadget" are Special Summoned this way, they can be destroyed so the player can search both "Metalfoes" cards and "Ancient Gear Gadget"