// {T}: Add {1} to your mana pool.
this.addAbility(new ColorlessManaAbility());
// {(G/U)}, {T}: Add {G}{G}, {G}{U}, or {U}{U} to your mana pool.
SimpleManaAbility ability = new SimpleManaAbility(Zone.BATTLEFIELD, Mana.GreenMana(2), new ManaCostsImpl("{G/U}"));
ability.addCost(new TapSourceCost());
this.addAbility(ability);
ability = new SimpleManaAbility(Zone.BATTLEFIELD, new Mana(0, 1, 1, 0, 0, 0, 0), new ManaCostsImpl("{G/U}"));
ability.addCost(new TapSourceCost());
this.addAbility(ability);