Traptrix Sera

Whenever you cast an instant spell, you may pay
{b}{b}. If you do, search your library for a blue or
black creature card, put it in your hand, then
shuffle your library.
Whenever you cast a creature spell or a creature
activates their ability, you may pay {u}{u}. If
you do, search your library for a blue or black
instant card, put it in your hand, then shuffle
your library.