this.toughness = new MageInt(9);
// Whenever Witherscale Wurm blocks or becomes blocked by a creature, that creature gains wither until end of turn.
Effect effect = new GainAbilityTargetEffect(WitherAbility.getInstance(), Duration.EndOfTurn);
effect.setText("that creature gains wither until end of turn");
this.addAbility(new BlocksOrBecomesBlockedByCreatureTriggeredAbility(effect, false));
// Whenever Witherscale Wurm deals damage to an opponent, remove all -1/-1 counters from it.
this.addAbility(new DealsDamageToOpponentTriggeredAbility(new WitherscaleWurmEffect(), false));
}