Greater Colibri (VT)
Need to verify their level, but I'm going to assume 81 for now.
DEF: 336
Melee Attack Cap: 772
Melee Attack Cap (with Dia): 733
Melee Attack Cap (with Dia II): 694
Melee Attack Cap (with Dia III): 656
Battle Bugard (IT)
Level 83
DEF: 356
Melee Attack Cap: 836
Melee Attack Cap (with Dia): 794
Melee Attack Cap (with Dia II): 752
Melee Attack Cap (with Dia III): 710
Sea Puk (T)
Level 78
DEF: 318
Melee Attack Cap: 683
Melee Attack Cap (with Dia): 648
Melee Attack Cap (with Dia II): 614
Melee Attack Cap (with Dia III): 580
Mamool Ja Philosopher (IT)
Level 83
DEF: 340
Melee Attack Cap: 816
Melee Attack Cap (with Dia): 775
Melee Attack Cap (with Dia II): 734
Melee Attack Cap (with Dia III): 693
Skoffin (IT)
Level 83
DEF: 359
Melee Attack Cap: 861
Melee Attack Cap (with Dia): 817
Melee Attack Cap (with Dia II): 774
Melee Attack Cap (with Dia III): 731
Skoffin (VT)
Level 82
DEF: 354
Melee Attack Cap: 831
Melee Attack Cap (with Dia): 789
Melee Attack Cap (with Dia II): 747
Melee Attack Cap (with Dia III): 706
Will try to get more mobs later, but hard with merit camps are occupied >.>
The reason for this is to help you determine what gear to wear while meriting. If you know you're bringing a RDM with Dia III, and food + minuets put you over 656 attack on a Greater Colibri, you may want to consider swapping some of it out for haste, accuracy, or hell even DEX.