I've seen Magic played but never played
How does that card work? You spent 2 mana (1 white) and it's just there? And another 3 mana to actually equip it as a sorcery, which moves that card to the discard pile
Why not just require 5 mana?
“[do thing] only as a sorcery” means [thing] is like a sorcery in
timing - you can only [do thing] on your own turn, when there are no other cards or effects waiting to be resolved. What this specific [thing] - equip - does, is attaches the equipment to the creature, much like an enchantment. It remains on the battlefield, equipped to the creature. Unlike enchantments, however, equipment don’t go to the discard pile if the creature they’re equipped to dies. They remain on the battlefield, and can be equipped to another creature at any time (or rather, any time you could cast a sorcery) simply by paying the equip cost.
So you spend one white mana and one mana of any color for
+2 Mace, and it’s just there. Then, at any time you could cast a sorcery, you can pay 3 mana of any color to equip it to a creature, which gets +2/+2 for as long as it’s equipped with
+2 Mace. If you later play a different creature you want to give the mace to, you can pay 3 mana of any color to equip it to that creature instead (removing it from the first creature). And if a creature equipped with
+2 Mace dies, the mace sticks around and you can pay 3 mana of any color to equip it to another creature if you want.