Leabellumn Silver Knight

First strike
For every white mana spent to cast Leabellumn Silver Knight, it gets +1/+0.
If one red mana was spent along with white mana to cast Leabellumn Silver Knight, it gets +0/+1. If it was two red mana, you may also have it fight target creature.
If three red mana was spent to cast it, it gains haste, and if it was four red mana, it also can't be blocked this turn.