<p>The only two power/toughness modifier counters which explicitly annihilate each other are +1/+1 and -1/-1 counters:</p>

<blockquote>
  <p>122.3. If a permanent has both a +1/+1 counter and a -1/-1 counter on it, N +1/+1 and N -1/-1 counters are removed from it as a state-based action, where N is the smaller of the number of +1/+1 and -1/-1 counters on it. See rule 704.</p>
</blockquote>

<p>Other counters ignore each other and contribute to the power/toughness of the creature as they would do without each other. A Wall of Roots with one -0/-1 counter and one +1/+1 has power/toughness 1/5.</p>

CC BY-SA 4.0
2019-11-22T14:30:45.670Z
2019-11-22T15:58:03.123Z
2019-11-22T15:58:03.123Z
Glorfindel
<p>They ignore each other completely, so the Wall of Roots will have both a -0/-1 counter and a +1/+1 counter (which has the net effect of having +1/+0).</p>

<p>The only reason +1/+1 and -1/-1 counters interact with each other is because of this state-based action:</p>

<blockquote>
  <p>704.5q If a permanent has both a +1/+1 counter and a -1/-1 counter on it, N +1/+1 and N -1/-1 counters are removed from it, where N is the smaller of the number of +1/+1 and -1/-1 counters on it.</p>
</blockquote>

<p>There is no similar rule for -0/-1 counters.</p>

CC BY-SA 4.0
2019-11-22T14:31:04.983Z
2019-11-22T14:31:04.983Z
GendoIkari
<p><a class="mtg-autocard" target="_blank" rel="noreferrer" href="http://gatherer.wizards.com/Pages/Search/Default.aspx?name=%2b%5bWall%20of%20Roots%5d">Wall of Roots</a> puts a "-0/-1" counter on itself to use its ability. How does this interact with a +1/+1 counter? Do they cancel out to make a +1/+0 counter? Does they cancel out the same as a +1/+1 and -1/-1 counter and both counters cease to exist? Or do they both ignore each other completely?</p>

CC BY-SA 4.0
2019-11-22T15:39:55.283Z
Note that [about 36 cards in MTG's history](https://tagger.scryfall.com/tags/card/deprecated-p-t-counter) used power/toughness counters that weren't +1/+1 or -1/-1, and the concept has since been deprecated.
doppelgreener
<magic-the-gathering>
How does Wall of Roots interact with +1/+1 counters?
CollinB
# How does Wall of Roots interact with +1/+1 counters?

(Asked by: username_0 on 2019-11-22)

[Wall of Roots](http://gatherer.wizards.com/Pages/Search/Default.aspx?name=%2b%5bWall%20of%20Roots%5d) puts a "-0/-1" counter on itself to use its ability. How does this interact with a +1/+1 counter? Do they cancel out to make a +1/+0 counter? Does they cancel out the same as a +1/+1 and -1/-1 counter and both counters cease to exist? Or do they both ignore each other completely?

**Tags:** magic-the-gathering

> **Comments:**
> **username_1**: Note that [about 36 cards in MTG's history](https://tagger.scryfall.com/tags/card/deprecated-p-t-counter) used power/toughness counters that weren't +1/+1 or -1/-1, and the concept has since been deprecated.  

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## 2 answers

### Answer by username_3 on 2019-11-22. Score: 17 | Accepted answer

They ignore each other completely, so the Wall of Roots will have both a -0/-1 counter and a +1/+1 counter (which has the net effect of having +1/+0).

The only reason +1/+1 and -1/-1 counters interact with each other is because of this state-based action:

> 704.5q If a permanent has both a +1/+1 counter and a -1/-1 counter on it, N +1/+1 and N -1/-1 counters are removed from it, where N is the smaller of the number of +1/+1 and -1/-1 counters on it.

There is no similar rule for -0/-1 counters.


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### Answer by username_2 on 2019-11-22. Score: 8

The only two power/toughness modifier counters which explicitly annihilate each other are +1/+1 and -1/-1 counters:

> 122.3. If a permanent has both a +1/+1 counter and a -1/-1 counter on it, N +1/+1 and N -1/-1 counters are removed from it as a state-based action, where N is the smaller of the number of +1/+1 and -1/-1 counters on it. See rule 704.

Other counters ignore each other and contribute to the power/toughness of the creature as they would do without each other. A Wall of Roots with one -0/-1 counter and one +1/+1 has power/toughness 1/5.


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