Arduous run

Target player loses 1 life. Return this spell to its
owner's hand at the beginning of the next end
step.
If an opponent has drawn two or more cards this
turn you may pay {0} rather than pay this spells
mana cost and {b} rather than pay its splice cost.
Splice onto trap {2}{b} (As you cast a Trap spell, you
may reveal this card from your hand and pay its splice
cost. If you do, add this card's effects to that spell.)