is a force in the Marvel Comics
universe with extremely powerful psionic
abilities. It occupied different hosts at different times, including Jean Grey
and Rachel Summers
. The power gained by the host was often offset by the exponential rise in the host's flakiness[?]
, which would frequently render the host useless when needed most, thus keeping the team from getting too powerful.
The character Jean Grey was introduced as a member of the X-Men in the early 1960s, and Rachel Summers was introduced as a member of the British-based superhero group Excalibur.
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