23 Lonis, Cryptozoologist Get A Clue For the low cost of two mana, Lonis, Cryptozoologist is a commander who allows you to convert your creatures into an impressive value engine, investigating (creating clue tokens) whenever another nontoken creature enters the battlefield under your control
it doesnt scale well with multiple players
8 Poncho-Wearing Pikachu: Sun & Moon Promos (Promo) Market Price: $270.00 Despite wearing a poncho of an Alolan Vulpix, this Poncho-Wearing Pikachu is an Electric-type card with an interesting attack
The latter are my personal end boss, as it took me a long time to even understand the principle
Steady vault offers 3.65% AER (lowest risk)
A Stage 1 at 130 HP evolving straight off Magikarp, it was far easier to field than the 150 HP Stage 2 monsters around it