Among them are Dragons, with the exceptionally strong Twinflame Tyrant coming in to double all your damage as long as it's out
Discarding your hand might sound rough, but if you have fewer than seven cards in your hand anyway, you might as well
A card from an old set may be worth far more than a newer reprint with the same name
Of course, my terms would be having Pauper (a specific constructed format where only Common cards are allowed in ones deck) and Singleton (a constructed deck format where ones deck may not contain more than one of any individual card) always available formats, but they do show up as special events
They usually have game-changing abilities or are special characters like planeswalkers
In its card abilities, naughty Stitch helps opponents get more cards in their inkwell, but then can quest for two lore and be easily brought back from the discard pile