Mostly we have Urza's Saga to blame for that with Portal Second Age, Stronghold and Exodus taking far less of the blame
Crystal cards were able to change their energy type to match an attached energy card, and only appeared in the Pokmon TCGs e-Card expansions from 2002 and 2003 - named for their compatibility with the e-Reader peripheral for the Game Boy Advance and Nintendo GameCube
Sin, Spiras Punishment Sin is a rather interesting payoff for decks that are graveyard-centric
Retreat Your Active Pokmon You can also choose to recall your Active Pokmon and swap it out with another Pokmon on your Bench
But as long as you have any other mana source lying around, Dimir Signet does such a good impersonation that it might just as well be
You can manipulate the top of your deck with cards like Worldly Tutor and Mystical Tutor, so Rashmi's ability doesnt just draw a card, but spells like Mystic Confluence and Torrential Gearhulk replacing themselves on your opponents turn is often plenty of value