Most collectors grade their cards purely to authenticate and preserve their cards current condition
Certification Number #128501153 Card Number 066 Player EXEGGUTOR Variety/Pedigree M1L-MEGA BRAVE Grade GEM MT 10
Kopala, Warden of Waves If you want to protect your merfolk, Kopala, Warden of Waves gives you a great typal-support card
Perhaps you really want a go on something in their bin - time to exile it with Ashiok for the -X
There are cards with the raised anime foil card treatment, found only in Collector boosters, with Japanese versions to be found exclusively in Japanese Collector boosters
Despite costing nine mana, players rarely if ever, cast it for that amount, instead bringing it back from the graveyard several turns earlier through one of several methods