Sadly, there's only a moderately played (MP) sale at $417.99 to reference, which leaves plenty of unanswered questions, but also suggests cards in lightly played (LP), or near-mint (NM) condition would command incredibly high sums
Hes also worth keeping alive later if you find the bigger Kronk to shift him
The full art one would mostly continue as-is, but start including some weird color variations too
As far as strategy goes I would recommend putting four energy cards on Arcanine on the bench before you move it into play, and one thing I do like about this card is that it can do a lot of damage and at the same time you don't need to discard any energy cards when using this card, plus you also only need one fire energy card when using Fire Mane so you can basically use this card with any type of deck if you really wanted to, you could just use a special energy card for the fire energy cost
Sacrifice after IV.) I Create a 1/1 white Human Soldier creature token
There are plenty of cheap Reserved List cards, but Chronatog also has the benefit of being part of a bizarre tribe - the unique atogs