Once it resolves, it stops being a spell and becomes an artifact permanent on the battlefield
Since most players get matched with Bronze, losing to a Bronze due to a bad hand, isnt good
I would say that it is that the characters force some very human characters into fights with dragons, deities, and a pot with a terrifying face on it
As such, there is no specific dueling strategy built around them and their play style, although the majority focus on offensive tactics and destroying the opponent's cards, as well as pressuring the opponent by cornering them with various disruption and lockdown effects, banishing effects, or deck milling
Ive seen plenty of games where Elspeth resolved on an empty board, made three tokens, and slowly buried the table under Soldier swarms