1. Decide whether you want a specific item
If a particular appearance matters, start by comparing buying and trading. A random case does not guarantee the desired item even after several attempts.
2. Separate official and third-party systems
Check current in-game reward availability in the game itself. Third-party sites have their own owners, rules and risks; using the Dota 2 name does not establish a link with its developer.
3. Check transfer conditions
Before taking action, establish whether an item can be traded, what account restrictions apply and how delivery works. Bonuses also need an expiry date, deposit requirements and turnover conditions.
4. Allow for time and randomness
Tasks can take longer than expected, and entering a giveaway does not secure a reward. Do not judge the expected result by the best prize on a banner.
Choosing an option
Compare buying and trading when you want a particular item. For bonus offers, start with the reward requirements and how the item reaches your inventory.