Responses
https://magic.wizards.com/en/story/planeswalkers/chandra-nalaar
Because it is entirely based off of MtG. Chandra is a Planeswalker. The spells mentioned are all cards as well.
Magic: The gathering (the card game) is about powerful summoners getting mana from the land (the lands you play) to summon creatures to fight for them. I really don't see the connection with this manga. So why is it called Magic: The gathering? O.o