Tips and Tricks

General Strategy Tips
When you sell a unit to the time shop you get all of your medals back; likewise, if you have a full team of 12 units and buy another unit, that unit will go immediately to the time shop and your medals will be immediately refunded. It is highly recommended to buy all units that are available for purchase with medals so they get sent to the time shop. There are multiple benefits of doing this: the achievement "Master of Induction" will reward you with gems as you accumulate units, you can use the units you buy as trans materials to get stronger heroes, they can be used in the Tower of Trial, and they can also be used in Outland Battle as supports. The time shop, which is essential, can be unlocked in the premium shop for 10 gems. All of those units you bought and sold over the course of the game will be available to purchase at your leisure, even if you bought them before you had the time shop unlocked (it is impossible to really delete a unit and trans levels are preserved in the time shop).

To get the best team, it's also highly recommended to make a team with only one race with some exceptions (Priests)!

Find a Guild as soon as possible, you can save up guild and raid coins to purchase units, artifacts or pet fragments. You should really only buy pet fragements though, since units and artifacts will come as you continue to play the game.

Recommended Utility Units

 * Area of Effect

Artifacts
FIrst of all, you need to pick a main race (Human/Elf/Undead/Orc).

If you've done that, you should purchase all artifacts since you will need them all eventually.

Not all artifacts are available in the artifact shop, some are only available through artifact tickets and the guild and honor shops.

Try to use artifacts that will boost the race of your team or your gold acquisition/expenditure

Trans Tickets
Do not use these until you have a plan for them! You may regret spending your precious trans tickets on random units or core units that you don't end up using. Figure out what your core is going to be, then you can use 6 trans tickets for each of your two core units to get them to T3 (12 total tickets). Then you'll need 24 more trans tickets to spend on one of each of the instructor units (Hot-Blooded Xuanzhang, Hoyden Goku, Dark Admiral, and Raptor Rider) so you can unlock upgraded supports in guild war/raid.

These are very valuable, so do some more research and spend them wisely.