Pokémon Mystery Dungeon: Explorers of Time Tips

how to beat GROUDON(for begginers only)
if you picked pikachu as your hero/leader make sure you get a grass type for a partner(i picked chikorita),anyway,so here's how to beat groudon:
1.make sure you are level 15+(i was at level 18 so it was just a piece of cake)
2.have at lest TWO reviver seeds(no need for vile seeds)
3(optional).Teach dig and iron tail to pickachu(link if possible)
4.link tackle,reflect and razor leaf
5.destrroy that stupid groudon