I'll be prioritizing early defense and smooth mana
10 Ratigan - Nefarious Criminal Card 216/204 EN.7, Ruby Ink The villainous rat of The Great Mouse Detective makes a grand appearance with card 216/204, "Ratigan - Nefarious Criminal." Though it is not among the most valuable from the set, its artwork by Maria Zafrilla is eye-catching and exudes both the power and evilness of the character
P/T Number 431 Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (2/1/2009) "Protection from everything" means the following: Progenitus can't be blocked, Progenitus can't be enchanted or equipped, Progenitus can't be the target of spells or abilities, and all damage that would be dealt to Progenitus is prevented
The most expensive Arena League promo I could find is the Island from 1999s Urzas Saga
It can also be sacrificed for two generic mana to draw a card