The opportunity cost of using a Knight is losing a slot that would have been used for a Queen
Most players cottoned on to the synergy Cauldron Familiar has with Witchs Oven early on, and the two went on to define their very own deck type, the notorious, and aptly-named, Cat-Oven
(2020-09-25) Lithoform Engine's first ability targets an activated or triggered ability that is on the stack and creates another instance of that ability on the stack
Exiling is possible via cards like Chrome Mox, delving it, or hating it via Faerie Macabre
Once per turn: You can reduce the Level of 1 monster with 2800 ATK/1000 DEF in your hand by 2 until the end of this turn (even after they are Summoned/Set, and even if this card leaves the field)
The artwork-specific nature of SIRs makes them harder to reprint than standard ex cards, which underpins their long-term scarcity pricing