When placed on an evasive creature like Spyglass Siren, it allows the player to draw a card each time they deal combat damage
Lastly, Bloodcrusher of KhorneBloodcrusher of Khorne (14,834 decks) gives all of our creatures trample
This may change going forward
There's also Helm of the Host for a more permanent alternative, Sword of Feast and Famine to untap all your lands twice for peak combat trickery, and Sword of Wealth and Power for lots of spell copying and Treasure tokens
It is a great gatekeeper of the format, punishing any opponent who stumbles or takes too long to set up their engine
Not only does its damage scale into the late game, making it an insane top deck, it also has a large body with relevant abilities when you play it on curve