// {G}: Target land becomes a 1/1 creature until end of turn. It's still a land.
SimpleActivatedAbility ability = new SimpleActivatedAbility(Zone.BATTLEFIELD,
new BecomesCreatureTargetEffect(new KamahlFistOfKrosaLandToken(), "land", Duration.EndOfTurn),
new ManaCostsImpl("{G}"));
ability.addTarget(new TargetLandPermanent());
this.addAbility(ability);
// {2}{G}{G}{G}: Creatures you control get +3/+3 and gain trample until end of turn.
SimpleActivatedAbility boostAbility = new SimpleActivatedAbility(Zone.BATTLEFIELD,
new BoostControlledEffect(3, 3, Duration.EndOfTurn),