Yanna Moltenblade

Whenever Yanna Moltenblade attacks, you may
pay {1}{w}. If you do, search your library for an Equipment card and put it onto the battlefield attached to Yanna.
At the beginning of your end step, put a smelt
counter on each equipment attached to Yanna,
then if any Equipment you control have three or
more smelt counters on them, sacrifice those permanents.