<p>Yes, that's fine.  You would play the spell during the declare attackers step, after attackers are declared, but before proceeding to the declare blockers step.  Then you are free to declare it as a blocker.  If you wait for your declare blockers step, it's too late to block with the creature.</p>

<p>The ordering is:</p>

<ul>
<li>Declare Attackers Starts: </li>
<li>Turn Based Action - Attackers are declared</li>
<li>Players get Priority &lt;- Cast Spell Now! </li>
<li>Declare Blockers Starts: </li>
<li>Turn Based Action - Blockers are declared </li>
<li>Players get Priority &lt;- Too late
to use as blocker if cast now!</li>
</ul>

<p>Any time a creature changes controllers, it is automatically removed from combat, so it will no longer be considered attacking you (or attacking/blocking at all if it previously was).</p>

CC BY-SA 3.0
2013-01-18T23:33:37.567Z
2013-01-18T23:36:26.550Z
2013-01-18T23:36:26.550Z
Affe
<p>My opponent declares two creatures as attackers. I want to play <a href="http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=230076" rel="noreferrer">Act of Aggression</a> to gain control of one of their creatures and so I can have it block their other creature. Is this possible? Is so, during what step do I need to play my Act of Aggression? If I played it during my declare blockers step, would the creature that I now controlled still be attacking me?</p>

<magic-the-gathering>
Can I use Act of Aggression to steal their attacking creature and block with it?
Gordon Gustafson
# Can I use Act of Aggression to steal their attacking creature and block with it?

(Asked by: username_0 on 2013-01-18)

My opponent declares two creatures as attackers. I want to play [Act of Aggression](http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=230076) to gain control of one of their creatures and so I can have it block their other creature. Is this possible? Is so, during what step do I need to play my Act of Aggression? If I played it during my declare blockers step, would the creature that I now controlled still be attacking me?

**Tags:** magic-the-gathering


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## 1 answers

### Answer by username_1 on 2013-01-18. Score: 15 | Accepted answer

Yes, that's fine. You would play the spell during the declare attackers step, after attackers are declared, but before proceeding to the declare blockers step. Then you are free to declare it as a blocker. If you wait for your declare blockers step, it's too late to block with the creature.

The ordering is:

* Declare Attackers Starts:
* Turn Based Action - Attackers are declared
* Players get Priority <- Cast Spell Now!
* Declare Blockers Starts:
* Turn Based Action - Blockers are declared
* Players get Priority <- Too late
  to use as blocker if cast now!

Any time a creature changes controllers, it is automatically removed from combat, so it will no longer be considered attacking you (or attacking/blocking at all if it previously was).


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