It may seem counter-intuitive to many people that a type of booster pack is sold for a collectible card game that isnt necessarily intended for play, but Collector Booster packs are intended to provide the best looking selection of cards in any given pack and may be just used for bragging rights, instead of being handled and shuffled in actual decks, during fraught games of MTG
Replace coolness with charge counters and ta-da
Ive learned to play around this card after getting destroyed by it several times, so I respect its role as one of the best sweepers in the format out of the sideboard
Considering that exiling things is pretty easy to do nowadays, Ketramose can easily turn into a card advantage engine
How do you pick the right counter spells for your deck
There are a lot of useful Rats you want to stick on the battlefield, and Swarmyard helps make your opponents require two removal spells if they ever want to take care of a Rat