The mobile MOBA Vainglory is having a massive spring sale tomorrow for 24 hours where every hero is a whopping 25% off. Not only that but each and every hero will be in the free rotation too, allowing you to try before you buy. The promotion will start at 6 a.m. ET on June 11.
If that wasn't enough, the developer is also holding a free skin give away contest. All you need to do to enter is Tweet them why you wish to have a specific skin. Eight winners will be selected on the day after this Spring Sale. Be sure to include the #INeedASkin hashtag and your player name in your tweet. (You will also need to tweet the developer's Twitter account directly.)
It's worth noting that all heroes will not be unlocked for free play in ranked matches. You can download Vainglory from the Play Store.