In the popular Amethyst/Emerald deck it lets you pull off a nice little trick with The Queens Castle Mirror Chamber, as you can choose to move a character to castle first, then resolve the lore and draw
Naturally, some people have mocked his reaction, but how would you respond if you pulled a card that was selling for tens of thousands of dollars in PSA GEM-MT 10 condition
A mix of both is ideal
Older cards are better than newer ones, because theyre already quite a bit scarcer
When mixed with a card like Fynn, the Fangbearer, this turns these tokens into cards that can give poison counters to your opponents for victory.
In order to combo off, we'll need either: 4BB if 1) an opponent controlling a Forest (or Forest dual) and you control a Swamp or 2) you control 5+ Swamps OR 4BBB OR Deal combat damage to a player with Geode Golem to cast Demonlord Belzenlok for free