If a creature connives X, its controller will draw X cards, discard X cards, then then put a number of +1/+1 counters on the conniving permanent equal to the number of nonland cards discarded this way
With the release of top notch delve cards from Tarkir, the delirium mechanic things, flashback stuff, recursive dorks, and even just an increase in good graveyard recursion effects there is a significant increase to the value of self mill
Finished in a shiny inkwash foil effect, the Enchanted Rare version of Stitch, Carefree Surfer has seen its value increase further thanks to the growing popularity of the Lorcanas Amber ink colour in high-level tournaments
Basic lands are provided freely during deck construction
Whether it's casting a spell twice, or just giving you a second chance to cast a spell that gets countered, it can make your game a lot more consistent