Missena, the crusader

Deathtouch, menace
When Missena, the crusader enter the battlefiel or attack choose an opponent and name a card. This player reveal his hand, if the named card is revealed this way that player discard this card, put a +1/+1 counter on Missena and choose another opponent. If it is not revealed this way, discard a card and put a -1/-1 counter on Missena.
Each time a player dicard a card this player looses 3 life.
Aight ! Together we shall sink to the depth of memory !