Just from recent history, in the modern era...
X-FAQtor #1, during her [not so] eXclusive [hi, Logan], 1-on-1 commune with Krakoa, wherein she...
ERECTed the BONEyard!
[For its design compleXity.]
Wolverine's so nosy, lol.
X of Swords: Creation, when she *singlehandedly* brought Emma's [GIANT, Amazonian] even eviler twin sister, Sadder-Nein, AND her...
Starlight Citadel, DOWN... 2 the GROUND!!
[For its literally showstopping, magnetic magnificence.]
LUV to hate her, obvs.
DUGGan's X-Men '21 #5's NOW *INFAMOUSly* subtle... fumble, recovery, AND... take-a-moment-2-Marvel & SHOW-OFF...
NUCLEAR Reactor MELTDOWN SAVE!!!
[For *insightfully* demonstrating her adaptability, resourcefulness, & sheer power.]
... Don't worry. I got this.