A: It's kind of a weird thing to give up, to be honest, but if you're familiar with the old card Rock Jockey, it'll help
They're equally satisfied by an artifact you sacrificed to pay a cost, a creature you controlled that was destroyed by Murder, or an enchantment you returned to your hand with Leave in the Dust
Maybe this is the place for all those weird Strixhaven archaeology cards like Lorehold Excavation
If an ability of the equipped creature states that it has flying "as long as" a condition is true, that condition becoming true won't cause the creature to gain flying
If you're completely new to the game and don't know how to play at all, we recommend starting with playmagic.com and then returning to Magic Academy
2004-12-01 If you pay the entwine cost, you draw five cards, then lose five life, then put the Demon token onto the battlefield