After Mikko was eliminated I had balanced my cats, got [scryfall]Zendikar Resurgent[/scryfall] to double my mana and managed to beat down the other players with single huge cat
Like most Magic: The Gathering cards, the value of Collected Company depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Mystery Booster 2)
it doesnt technically say it cant be blocked, but the blocking condition is quite steep, and it hits really hard if your opponent doesnt block it
If you can keep Yuriko on the board, her ability even triggers for multiple Ninjas
Klauth, Old Gnawbone and Savage Ventmaw can trigger it on their own, and Grand Warlord Radha, Selvala, Heart of the Wilds and Kessing Naturalist help get us there