Squighog Riders

When Squighog Riders enters the battlefield, you
may search your library for a creature card with a converted mana cost of 4 or less, if you do reveal
it, place it into your hand, and shuffle your library.
Whenever a creature with greater power than Squighog Riders is destroyed, add {g} or {r} to your
mana pool.
"A squig may not be the most reliable mount,
but it certainly is the most entertaining."