Jazzy, Insomniac Architect

This card enters the battlefield with 5 Sleep
counters on it. As long as this card has at least
one Sleep counter on it, it cannot attack or block.
Contract — Whenever a nontoken creature enters
the battlefield under your control, if it isn't legendary, you may search your library for up to
one basic land or Gate card and put it into the battlefield tapped. If you do, shuffle your library. Otherwise, draw a card and remove one
Sleep counter from this card.