Here are a few of these, with some brief descriptions: Cube Draft Cube Draft is just like a normal Draft, although instead of drafting from booster packs, you draft with packs from a curated pool of cards
You can't change the "a" in "roll a six-sided die," but you could change the "two" in "roll two six-sided dice." You can change the number of sides on a die
Outside of that weakness, this deck seems quite robust and powerful, and I imagine something similar will shortly become a pillar of Standard, though it's unclear exactly what will be presented to supplement Gideon, Nissa and their Oaths.
As does the way those elements synergize with the overall card
In most cases, shadow is effectively unblockable
Has Reach and the new Revolt mechanic, which lets you draw a card when Silkweaver Elite enters the battlefield if a permanent you controlled left the battlefield this turn