One such recent card, which ended up being a haymaker in Standard, is Archfiend of the Dross
All three of these have their own worlds, canon, and rules which have kept the franchise new and evolving
While Young Deathclaws is on the battlefield, the scavenge cost of a creature card in your graveyard is equal to its mana cost, including any colored mana requirements
Any of these layers can have ink composition/application issues resulting in low or missing ink entirely
Sea Creatures The depths of the ocean remain as alien to us as outer space, and thats been fuel for many a folk tale and nautical legend over the years
After all, you get no built-in protection aside from your ultimate, and instead what you're mainly working with is a bit of card draw and ramp