//Trample
this.addAbility(TrampleAbility.getInstance());
//Whenever Borborygmous Enraged deals combat damage to a player, reveal the top three cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.
this.addAbility(new DealsCombatDamageToAPlayerTriggeredAbility(new BorborygmosEnragedEffect(), false, false));
//Discard a land card: Borborygmos Enraged deals 3 damage to target creature or player
Ability ability = new SimpleActivatedAbility(Zone.BATTLEFIELD, new DamageTargetEffect(3), new DiscardTargetCost(new TargetCardInHand(new FilterLandCard())));
ability.addTarget(new TargetCreatureOrPlayer());
this.addAbility(ability);