I cant remember the last time I sat down at a table where someone wasnt playing a deck that used blue instants
However, these cards just don't have the visual pop that Illustration Rare and Special Illustration cards do
For the second line of text, look out, the permanent pump and group slug action are already really solid effects that give your games inertia (as in lead to you winning or at least making an impact)
Its also an Ezio for Dimir Assassins, which is perhaps more key
When that creature leaves the battlefield this turn, you get a boon with "When you cast your next creature spell, it perpetually gets +2/+0." Draw a card
With a whopping ten of these lands, you'd probably be better off simply swapping some out for basics themselves or sucking it up and buy into some shock lands and surveil lands