Paladin already has SOOO much heal!!
4/2 lifesteal reborn is pretty bad, its super slow and basically will only be used for the reborn tag. Lifesteal means nothing if you are not gaining life from it and paladin already have so many better options that are faster as well.
A 4/2 deathrattle summon a 4/1 is meh at best, especially as the 4/1 can be removed super easily by hero powers. It doens't even have taunt or anything, this card is bad and will only see use if the paladin quest turns out to be good.