Crawl Hedorah

Deathtouch, Fear
As an additional cost to cast Crawl Hedorah,
you must own a card named 'Aquatic Hedorah'
in the graveyard or exile.
When Crawl Hedorah dies, you may search your library for a card named 'Flying Hedorah'
if you do, reveal it, put it into your hand,
and shuffle your library.