Tuesday, Joker's Precursor

First Strike
Rebel spells you cast cost {1} less to cast.
When Tuesday, Joker's Precursor enters the
battlefield, target 2 creatures. Tuesday has has
base power and toughness equal to the greatest
power and toughness from among them plus 2.
Tuesday gains the abilities of those creatures and
you may spend mana as though it were mana of
any color to activate those abilities.