Kal Kazaar, Dark Magician

Ward — Put two target nontoken permanents
you control on the top of their owner's libraries.
{x}{u}{b}{r}, {t}: Surveil X. Kal Kazaar deals X
damage to target creature or planeswalker.
You may pay an even amount of life instead of
paying {x} in a cost. The amount of life spent
must be twice the value of X. X can't be 0.
"Do you believe in magic?"