Echoes of the Sun-host

Once per turn, when a non-token creature
enters the battlefield under your control, you
may pay {1}{r}. If you do, create a token copy of
that creature, except the token isn't legendary
if the creature is legendary, and has flying and
haste. Exile that token at the beginning of the
next end step. When you do, you may pay
{1}{w} to gain 2 life and draw a card.