Blazes target players within 48 blocks. If a blaze is damaged by a player or other mob, it alerts other blazes within 48 blocks to target the attacker.  ^{[Java Edition only]} A blaze flies when it acquires a target, slowly approaching while attempting to remain from 0.5 to 3.5 blocks above the target.

Zero to one blaze rods are dropped when killed. Blazes have two attacks. When the player is close, the Blaze hits the player for about 2 hearts of damage. If the Blaze has spotted the player, but the player is too far, the Blaze will shoot a fireball at the player which ignites on impact.

Pokmon Sun and Moon Expansion Pack Double Blaze Box - 30Pack.