A Blastopod from Onslaught.
Blastopods are Cyber Minions from Infinity. These tripedal Darkspore utilize rocket launchers to send fast-traveling homing missiles towards their targets, which are nearly impossible to outrun.
Lore[]
When the Darkspore invaded Infinity, they granted the mech-defense units called Blastopods a special mutation. That mutation allowed bBastopods to metabolize numerous pollutants to become extremophilic killing machines. The slow moving Blastopods adapted themselves to shooting medium range homing projectiles at anything that stood against them. They can do so only while stationary.
Strategy[]
Their missiles are practically impossible to evade and have a fairly long range, making them very hazardous in larger numbers. So the best way to deal with Blastopods will be utilizing quick attacks and fast Heroes to kill them off before they've dealt too much damage. However, they should remain immobile in order to shoot, and they do not fire them very quickly, so ranged Heroes such as Tempests can pick them off from a distance while taking relatively little damage.
Andromeda's Gamma variant is very effective against Blastopods, because she can use her Repulsion Sphere squad ability to deflect their missiles back at them, and she can also slow-down their projectiles with her Time Bubble variant ability.
Wraith's Ghostform squad ability is also helpful, because it causes their missiles to simply pass-through the user, making these enemies completely harmless.