Text (SH+errata): 3/3, Haste. ; {0}: ~this~ gets +1/-1 until end of turn. [Oracle 1999/05/01]
It will be destroyed as soon as one of its abilities resolves that puts its toughness at zero (or less than the current amount of damage on it). This destruction is a state-based effect, so there is no way to use its ability any more to increase its power and there is no way to use Fling before it is put into the graveyard. [D'Angelo 1999/06/01]