Ahsoka Tano

The World Between Worlds — When this creature
is destroyed, Exile it instead. At the start of your
upkeep if this card is in Exile place a time counter
on it. At anytime you may pay the mana cost
for this card as though it had Flash and it enters
the battlefield with a +1+1 counter on it equal to
the number of its time counters.
Padawan (You can have two commanders if the
other is a Jedi Master)