Nintendo
Auto-translated
The "Summon Portal" spell, School of Fire, level 5
Allows summoning troops from towns and outposts. Basic level - from the nearest town, advanced - from all towns, expert - from all towns and outposts.
The "Communication Portal" spell, School of Water, level 5
Allows communication with heroes (exchange window, as with normal contact). Basic level - connects with the nearest hero, advanced - with any hero on the adventure map, expert - with any hero, including heroes inside a castle.
I propose a similar idea, "Hero Summon," School of Water, level 5
Summons your hero to an adjacent cell next to the caster (basic level - nearest hero, 400 mana points; advanced - any hero, 400 mana points; expert - any hero, 200 mana points).