Kill-hungry Samurai

Fanatic (if this creature is tapped, it can attack and
block as though it were untapped)
{t}, pay 1 life for each ability chosen: choose up
to three:
-this creature is unblockable until end of turn
-this creature gets +X/+0, where X is the amount
of life you've lost this turn
-this creature gains infect until end of turn