Kozilek, Reality's Paradox

As you cast this spell, you may discard any
number of permanent cards. If you do, for each
card discarded this way, this spell has affinity for
each the discarded card's types. (If a spell has
multiple instances of affinity, each of them applies.)
When you cast this spell, if no mana was spent to
cast it, draw two cards for each card you
discarded this turn.
Kozilek has protection from each card type it
has affinity for.