Like I've mentioned before. Your monster has a set time limit to live. About 3-4 in game years average. So time management and focusing on training is a must. I personally like training my monsters in an all rounder type deal. The A.I. rarely does that. Generally I see most A.I. players focus on power and speed. Which is good but has the fault of being a glass cannon.
As you know my first monster was a Gryphion. I would say its TECMO's version of the pokemon Blaziken. Freakin awesome dude he was. I was still learning the ropes so he suffered some major losses. But still faithful and pulled some serious wins out of nowhere.
|Zalken my Griphyon before training|
My Second one was actually a Tiger class. A Ryulon to be exact. I thought the horns on it were pretty cool looking. I found it hard to raise him a bit with that vegetarian trait on him but he's still a great monster. He didn't take losing sitting down. I could almost say he had his own X-Factor LVL 3 in some situations. His great achievement was pulling me up to the A ranks which allowed to use most monsters in the game.
|Soran my Ryulon before Training|
My latest monster (now dead). I finally picked up a Dragon. Shimurug to be exact. This took going through hundreds of various disc to find. You honestly can't go wrong with a dragon. The only thing I felt I did wrong was giving him such high Guts costing attacks. But in the end it still paid off. ESPECIALLY at the end. Opponent doesn't block Inferno = Dead. He lasted all the way to the S Rank. And even helped me discover the final set of tournaments the Big 5. I have to say this dude performed beyond all my expectations.
|Gramzon my Shimurug before Training|