I keep reading the poem on the statue, but I can't figure it out. I brought a steel Pokemon, an ice Pokemon, and a rock Pokemon, but it just WON'T WORK! I'm getting frustrated, can anyone help me?!?
You must have regice, registeel, AND regirock all in your party. Not just their types. You can only get them as an event with another regigigas which passed a long time ago. You'll have to trade.
You have to have seen all the Pokemon of the sinnoh region (150 in total) and you must bring Regice, Regirock, and Registeel to Snowpoint City temple.
1: see all the Pokemon in the region.
2: bring the other 3 regis to snowpoint