You can either sacrifice them to do something color related (Like make a land a creature for a turn) or you can just draw a card with them
This is the ideal budget range to acquire French PSA 9-10 holos from Wizard-era expansions (Neo, Gym, e-Series) that are still accessible but whose supply shrinks each year
Since I found it very useful for learning, I wrote this article to guide you throughout the same process I experienced
Standard Card Illustration Guidelines Composition Portray the Pokmon you chose based on how it looks and behaves
Lutri does see play in Pioneer as the companion to a blue-red control list that suffers from awkward card choices based on this restriction
That said, if you're able to part with one of your precious cats and flip him over, you'll find Ajani, Nacatl Avenger is no slouch in planeswalker form either