When you are able to flatly outlaw a card from being played, that gives your deck a chance to catch up or a chance to nip the opponents strategy in the bud
By keeping an eye on market trends and staying active in collector communities, you can make informed decisions about when to buy, sell, or hold onto specific cards
Its important to provide a balanced and professional look to the cards by ensuring that all the essential information is printed on the card
There's a smattering of cards that specifically interact with otters or make otters, and many of them are nice, efficient cards, even for a spellslinger deck with inexplicably few otters: Lilypad Village Valley Floodcaller Harnesser of Storms Otterball Antics Pearl of Wisdom Rockface Village Splash Portal Stormchaser's Talent Valley Flamecaller All of this adds up to an Izzet Prowess deck that features otters, which is awesome
Several cards can efficiently fetch a Continuous Trap back from the Graveyard Awakening of the Sacred Beasts, Qardan the Clear-Sighted, and Booby Trap E are all examples, plus the latter two allow the controller to activate that Continuous Trap during the turn it's Set