Every time you play a game in the Tavern with a new person, you don't know – should you do 2 double damage (DD) runs, or just 1, or should you use a random hero, or not.

This is for inadequate players. I didn't even think that there would be any restrictions in the Tavern/World Tree (WT). If you can upgrade, then upgrade. If you can jump twice, then jump twice.

If a rule appears in the WT stating "It is forbidden to upgrade to levels 1, 6, and 7 in the Conflux," then what's the point of the WT? Either physically prohibit upgrading them, or allow it without restrictions.

One of the main goals of the WT is MINIMUM RULES! Ideally, there shouldn't be a topic with rules for the WT at all.