Talk:Meta Magic/@comment-25013293-20140507211739/@comment-24821263-20140513072016

To add a little bit to your description, the strain of the old walkers power was never an issue the multiverse was made to handle it and they could even create their own universe to power their magic like Serra did.

The problem was when Urza's school, Tolaria, exploded because of Karn going back in time to stop an attack on the facility and causing a terrible time space explosion. The time magic screwed up time-space and spread throughout the multiverse forcing Jeska mend reality and sacrifice so much power that it damaged every planeswalkers spark (those born and the future ones). This is because Dominaria is the nexus of the multiverse. Their were rifts in other places, they just weren't important until Dominaria was in danger, because rifts could affect each other.

The wiki claims that it was the result of an imbalance, but that was never mentioned in any book. What it was was planeswalkers and other mages messing with things that shouldn't be messed with. But it would have never been a multiversal catastrophe had Karn not overloaded Urza's time machine.

The Planeswalker regaining that level of power is Elder Dragon Nicol Bolas