Soulseeker

First strike
Painborn(Each 1 life you pay while casting this spell pays for {1}. This creature enters the battlefield with a -1/-1 counter on it for each life paid this way.)
{w/b}: Remove a -1/-1 counter from Soulseeker: Put a -1/-1 counter on another target creature. Soulseeker gains lifelink until end of turn.