Talk:The Watcher in the Sky/@comment-11176760-20151113212050/@comment-25151790-20151113222359

Hello, and welcome!

The first thing you might want to check is the FAQ.

This wiki also has many helpful guides for upgrading your cards: Upgrade, Evolution & Amalgamation, Awakening, Max Attack and Defense

It is possible to just use N cards to level your stronger cards, but it will take a long time and end up costing a lot of gold. You can also gain experience by using the card in battle. For optimal Slime usage, check the Upgrade page I linked above.

Battles work by attacking the opponent repeatedly until their soldier count drops to 0. It's more RPG-style battles than straight up stat-comparison in some other card games.