Dimir Veilseer

When Dimir Veilseer enters the battlefield, either Surveil 3 or Surveil 2 from target player's library.
{u}{u}{u},{t}; Counter target noncreature,
non-Dimir spell.
{b}{b}{b},{t} Discard X non-Dimir cards; exile the
top X cards of target player's library, and Dimir Veilseer
gains +X/+half X, rounded down.
Sometimes, the future shouldn't be seen.