Black doesnt typically get the ability to destroy enchantments or artifacts, but white does
On top of that, the mayhem cost adds real flexibility, allowing you to loot it away with cards like The Modern Age and cast it at a discount to squeeze even more value out of the effect
Keyword is a term for a name of an ability that is used in place of rules text
To exploit this ability, the idea is to run only devastating threats like Hullbreaker Horror or Nezahal, Primal Tide and run commanders or cards that create tokens like Talrand, Sky Summoner that can later be used as fodder
If you can find the space in your list and have suitable ways to take advantage of the speed or suitable ways to recover the card disadvantage as well as having the land count to support it then this is one of the best cards going
The Sword Released wants you to have big, bulky characters on the field - and with cards like Wreck-It Ralph not minding taking damage, you're encouraged to get out there and start swinging at your opponents