Idle Heroes Heroic Summon: How Many Scrolls Should You Save?

Our advice

Before making a plan, match the item name to the event’s qualifying action. Keep Prophet Orbs, Treasure Coupons and Cores of Transcendence out of the scroll total unless the actual event describes a separate task for them. A mixed code bundle can support several activities without turning every item into Heroic Summon progress.

Count claimed items you own, not a code you hope will still work. Once a reward reaches your account, record its actual quantity. This avoids planning around an expired code, an already-used gift or an item with a similar-looking icon.

Our advice

In your live event, inspect the qualifying action, required count, repeat limit, reward claim condition and end time. Write the target you actually want. Do not substitute the historical announcement’s duration or round limit for the rules on your screen.

A milestone can be guaranteed by completing its stated task while the hero drawn from an individual summon remains random. Evaluate those two outcomes separately. A desirable prize does not establish that every possible summon result will help your roster.

Our advice

Use this calculation: remaining qualifying attempts = your chosen requirement minus progress already credited. The shortfall is that remainder minus owned scrolls and other confirmed qualifying attempts, never below zero. Count each source only once.

Worked example, not a live event: a chosen target requires 120 qualifying attempts and the counter already shows 20. You need 100 more. With 76 scrolls and 14 confirmed additional qualifying attempts, the shortfall is 10. A reward obtained only after completing the target cannot fund the attempts needed to reach that same target.

If there are intermediate scroll rewards, plan sequentially. First show that you can reach and claim the earlier step without borrowing from the later one. Only then add its scrolls to the next step’s budget. Keep the claim deadline separate from the time you expect to summon.

Our advice

A scroll shortfall does not automatically justify spending Gems. First check the live price and what else the same balance is reserved for. Write the extra Gem cost beside the target rather than presenting a scroll-only calculation as the full cost.

Stop if the plan depends on buying a second resource whose requirement you have not checked. Bundled event tasks can make the next reward look close while another currency remains missing. Compare the entire task with saving; do not spend simply because earlier summons are already committed.

Before a large batch, take a note of the event counter and your chosen finish line. After claiming the planned reward, recalculate before starting another round. The remaining balance should be a new decision rather than an automatic continuation.