Rhythm of the Wild makes your creature spells uncounterable, but giving your creatures riot pretty much guarantees a +1/+1 counter if youve already got your other haste enablers online
Cats date back all the way to Magic s first set, 1993s Alpha , which saw a singular kitty mark the debut of the creature type in the game: the iconic Savannah Lions
Every once in a while Ill tweak my methodology but for the most part, Im going to use EDHREC data to see what people are playing and then Im going to use my expertise in both MTG Finance and EDH to determine if anything used a lot will be worth more money later by virtue of that playability
Judges tend to look down on it as a waste of time, and it's even been restricted to occurring once per game in official tournament policy
Then theres Magic Set Editor, which looks pretty cool
Can You Block With Creatures That Have Protection