V1.3.21 Update

Fixes：

• Fixed the incorrect text and effect of the card “Leeching”.
• Fixed an issue where the derived cards did not work after the first one when equipping” Nice Guy Card”” to multiple heroes.
• Fixed the issue where the effective range of the card “Flank Protection” did not match its description.
• Fixed an issue where Hero Miki’s special ability sometimes did not work.
• Fixed the threshold determination of the indicators for the card “Avatar”.