Chaeleich's Dragoncall

Flash
If a Chaeleich card was dealt damage or was
the target of a spell or ability, you may search
your hand, library and graveyard for a card
named Blu, Wings of the Eternal Knight and
put onto the battlefield under your control. It
gains Haste until the end of the turn.
While in the Underdark, a rumbling was felt from
the ground above as Blu's raging head smashed
through the dirt "Is everything alright my queen!?".
—Blu to Queen Chaeleich