Sarafia, Blizzard Strider

Haste, Reach, Double Strike
Whenever a creature enters the battlefield, add
one mana of any color to your mana pool.
Whenever Sarafia, Blizzard Strider, deals combat damage to a player, add one mana of any color to
your mana pool.
{s}{s}{s}: Sarafia, Blizzard Strider, cant be blocked
this turn.
{s}{s}{s}{s}{s}: Up to two target creatures cant be blocked this turn.