Mist, Dragon Of Water

Lifelink
Other dragons get 0+/1+ And cost {1} less to cast.
Whenever a permanent enters the battlefield
under your control Draw Cards Equal to The
Cards converted mana cost than Discard Equal to
Half the converted mana cost. Rounded down.
{2}{t} Sacrifice Three dragons: Counter target spell.
{t}:Exile Target Dragon you control until the end of
the turn.
Partner(Partner with Kist, The Fire Dragon)