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