Accursed Witch / Infectious Curse Accursed Witch is (eventually) a recurring source of lifegain and lifedrain etc
In Magic, only The Mind Stone and The Soul Stone have been revealed We now have a line to draw and can expect the rest of the mythic cycle to be 2-mana indestructible mana rocks with a large cost to harness, and a great ability that is well-known among its color
On creature-heavy decks you should run fewer board wipes because you dont want to clear your own board too often (about 2-3 seem enough, unless they are one-sided where you can add more without hurting your own strategy) while on creature-light decks you need more (about 4-5 is a good number)
But played together, they lock out pretty much any deck that runs 3 or more colours
Red Glimpse the Impossible In years past, the thought of having basically a draw three for three mana in red would be impossible
But generally it's a tradeoff between ease of producing mana for the deck and specific mechanics you want to run