magarena/release/Magarena/scripts/Viashino_Shanktail.groovy

[
    new MagicBloodrushActivation(
        MagicManaCost.create("{2}{R}"),
        "Target attacking creature\$ gets +3/+1 and gains first strike until end of turn.") {
        @Override
        public void executeEvent(final MagicGame game,final MagicEvent event,final Object[] choiceResults) {
            event.processTargetPermanent(game,choiceResults,0,new MagicPermanentAction() {
                public void doAction(final MagicPermanent creature) {
                    game.doAction(new MagicChangeTurnPTAction(creature,3,1));
                    game.doAction(new MagicSetAbilityAction(creature,MagicAbility.FirstStrike));
                }
            });
        }
    }
]