Restarted Emerald on Saturday; today is Friday. Here's my current party:
Rayquaza, lv. 73 - Fly, Rest, Extremespeed, Outrage
Trapinch, lv. 20 - Bite, Sand-Attack, Faint Attack, Dig
Relicanth, lv. 34 - Water Gun, Rock Tomb, Yawn, Take Down
Sceptile, lv. 59 - Pursuit, False Swipe, Leaf Blade, Slam
Wailord, lv. 41 - Astonish, Dive, Surf, Rest
Nincada, lv. 11 - Scratch, Harden, Leech Life, Flash
Indicators of the fact that I just went to the trouble of catching Registeel.