Eyeron, the collector

Whenever you cast a spell, you may reveal a
card from your hand. If you do, the revealed
card costs {1} less to cast the next time you
cast it.
(You may use this abilitiy on the same card
multiple times)
When you cast Eyeron, you may reveal any
number of unraveled cards from your hand.
Eyeron costs {1} less to cast for each card
revealed this way.