(1) When you Normal Summon an Alien monster, you can Special Summon this card from your hand. (2) When you do, place 2 A-Counters on face-up monster(s) your opponent controls.
The (1) optional Trigger Effect activates & resolves in the hand.
This effect activates in the Summon response timing (like Trap Hole).
If you wish to use this effect, you CANNOT use Ignition Effect Priority in response to the Summon.
This effect can't activate if the Normal Summon happens as Chain Link 2(+) by Ultimate Offering.
Even if you have more than 1 "Alien Dog" in your hand, you can only activate the effect of 1.
The (2) mandatory Trigger Effect activates & resolves on the field.
This effect activates after the Chain in which the (1) effect resolved.
You may place both A-Counters on a single monster, or one on each of two monsters.
The effects of "Alien Dog" do not target. You select the monster(s) when the effect resolves.
Even if you have more than 1 "Alien Dog" in your hand, you can only Special Summon 1 when you Normal Summon an "Alien" monster.