Aggressive Waterhole

{t}: {c}
When Aggressive Waterhole enters the battlefield, you may pay {r/g}, if you do, create a 2/3 green and red crocodile creature token
{t}: {r/g}{r/g}, activate this ability only if you control any crocodiles
{t}, {r/g}{r/g}{r/g}{r/g}{r/g}: create a 2/3 green and red crocodile creature token