Hanweir Garrison
Creature — Human Soldier
Whenever Hanweir Garrison attacks, create two 1/1 red Human creature tokens that are tapped and attacking.
(Melds with Hanweir Battlements.)
"We're ready for anything!"
Illustrated by
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Rulings
You choose which opponent or planeswalker controlled by an opponent each token is attacking as it enters the battlefield. It doesn’t have to be the same opponent or planeswalker that the trigger’s source is attacking, and the tokens don’t both have to attack the same player or planeswalker.
On the turn they enter the battlefield, the tokens are never declared as attacking creatures. They simply enter the battlefield attacking. They won’t cause any abilities that trigger “whenever a creature attacks” to trigger.
If another ability of a source you control triggers when attackers are declared, such as that of Hamlet Captain, you may have it resolve before or after that of Hanweir Garrison. If that ability has targets, it won’t be able to target the tokens.
If another ability of a source you control triggers when attackers are declared, such as that of Hamlet Captain, you may have it resolve before or after that of Hanweir, the Writhing Township. If that ability has targets, it won’t be able to target the tokens.
For more information on meld cards, see the Eldritch Moon mechanics article (https://magic.wizards.com/en/articles/archive/feature/eldritch-moon-mechanics-2016-06-27).