Artifacts

Artifacts are permanent upgrades that apply to all your heroes. You can level it up (maxed at level 10) by obtaining the same artifact. Currently, there are 24 known artifacts in the game. To obtain those artifacts, you can do the following : Your current artifacts, descriptions, and levels can be seen by selecting Classic Mode, then tap/click the Artifacts button on the bottom of the screen.
 * In Classic Mode, an artifact is earned when you pass a boss stage and your game ends. A prompt comes up and allows you to select one from a selection of three random artifacts, including ones you have already obtained.
 * In Raid, an artifact is one of the possible rewards for defeating the Raid boss. This is a random reward and may be an artifact you've already obtained.
 * Starter Package gives 3 artifacts.
 * There is also a possibility that coupon code might give artifacts.

Each unique artifact takes up a slot, and additional slots can be purchased with gems. If you are unable to afford another artifact slot upon earning an artifact, you will be prompted to select an artifact to discard.

Below is a list of the 24 artifacts, as well as their descriptions.

Extra Note: Artifact that affect Boss will also affect mini-boss enemies