A blazing orb that, skyward hurled,
will lead to gates beneath the world.
Twelve more set 'round, the gate will send
the unprepared to meet their end.
1 Answer
This seems to be describing
An Eye of Ender in Minecraft
A blazing orb that, skyward hurled,
will lead to gates beneath the world.
An Eye of Ender is an orb crafted from an Ender Pearl and Blaze Powder and has a fiery texture.
When used, it is thrown into the sky and travels toward an End Portal, which is found in a subterranean fortress.
Twelve more set 'round, the gate will send
the unprepared to meet their end.
An End Portal can be activated by filling each of the 12 blocks it is made of with an Eye of Ender.
After activating it, the player can travel through it to the End, which starts a boss fight which will likely kill the unprepared.