<p>Yes, that is entirely correct. Whenever a continuous effect comes into existence, it gets a timestamp, which represents when it came into existence relative to other effects. And, all of those effects you described affect Layer 4, so as you surmised, the order in which they are applied depends on when they were created.</p>

<p>It's important to note that at the end of this sequence, there are 4 continuous effects modifying the land's subtype. Whenever you want to figure out what the land's subtype is, you apply all of the effects in order. This is important because it means that when one of the effects stops applying, you just remove it from the list. For example, if Gaea's Liege leaves the battlefield, the land will be an island.</p>

CC BY-SA 3.0
2014-11-02T16:55:51.163Z
2014-11-02T16:55:51.163Z
murgatroid99
<p>I have read a lot of questions about the priority in the stack and the triggered abilities.  However, I would like to validate my understanding of the continuous effects priority rule.</p>
<blockquote>
<p><strong>613.6.</strong> Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.</p>
</blockquote>
<p>Here's a scenario:</p>
<ol>
<li><p>Player A has a plain.</p>
</li>
<li><p>Player B cast a <a class="mtg-autocard" target="_blank" rel="noreferrer" href="https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Phantasmal%20Terrain">Phantasmal Terrain</a> on it and change it to a swamp.
<em>At this point, the plain will end up as a swamp</em></p>
</li>
<li><p>Player A use a <a class="mtg-autocard" target="_blank" rel="noreferrer" href="https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Gaea%20Liege">Gaea Liege</a> ability to turn it into a forest.
<em>At this point, the plain will end up as a forest</em></p>
</li>
<li><p>Player B also cast a <a class="mtg-autocard" target="_blank" rel="noreferrer" href="https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Phantasmal%20Terrain">Phantasmal Terrain</a> on it and change it to a island.
<em>At this point, the plain will end up as an island</em></p>
</li>
<li><p>Once again, player A use his <a class="mtg-autocard" target="_blank" rel="noreferrer" href="https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Gaea%20Liege">Gaea Liege</a> ability to turn it into a forest.
<em>At this point, the plain will end up as a forest</em></p>
</li>
</ol>
<p>Is my logic ok?</p>

CC BY-SA 3.0
2014-11-02T17:13:07.450Z
You can use `[mtg:Phantasmal Terrain]` to link to cards.
ikegami
CC BY-SA 3.0
2014-11-03T21:29:46.223Z
This question is a subset of [When two card texts confict, which takes priority?](http://boardgames.stackexchange.com/q/5978/6692), which effectively makes it a one way duplicate.
Rainbolt
CC BY-SA 3.0
2014-11-04T07:45:26.543Z
Incidentally this whole question has nothing to do with the idea of "priority" which determines when each player is allowed to play spells and abilities.
David Z
<magic-the-gathering>
Enchantment and other continuous effects priority
The_Black_Smurf
# Enchantment and other continuous effects priority

(Asked by: username_0 on 2014-11-02)

I have read a lot of questions about the priority in the stack and the triggered abilities. However, I would like to validate my understanding of the continuous effects priority rule.

> **613.6.** Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.

Here's a scenario:

1. Player A has a plain.
2. Player B cast a [Phantasmal Terrain](https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Phantasmal%20Terrain) on it and change it to a swamp.
   *At this point, the plain will end up as a swamp*
3. Player A use a [Gaea Liege](https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Gaea%20Liege) ability to turn it into a forest.
   *At this point, the plain will end up as a forest*
4. Player B also cast a [Phantasmal Terrain](https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Phantasmal%20Terrain) on it and change it to a island.
   *At this point, the plain will end up as an island*
5. Once again, player A use his [Gaea Liege](https://gatherer.wizards.com/Pages/Card/Details.aspx?name=Gaea%20Liege) ability to turn it into a forest.
   *At this point, the plain will end up as a forest*

Is my logic ok?

**Tags:** magic-the-gathering

> **Comments:**
> **username_1**: You can use `[mtg:Phantasmal Terrain]` to link to cards.  
> **username_2**: This question is a subset of [When two card texts confict, which takes priority?](http://boardgames.stackexchange.com/q/5978/6692), which effectively makes it a one way duplicate.  
> **username_3**: Incidentally this whole question has nothing to do with the idea of "priority" which determines when each player is allowed to play spells and abilities.  

---

## 1 answers

### Answer by username_4 on 2014-11-02. Score: 3 | Accepted answer

Yes, that is entirely correct. Whenever a continuous effect comes into existence, it gets a timestamp, which represents when it came into existence relative to other effects. And, all of those effects you described affect Layer 4, so as you surmised, the order in which they are applied depends on when they were created.

It's important to note that at the end of this sequence, there are 4 continuous effects modifying the land's subtype. Whenever you want to figure out what the land's subtype is, you apply all of the effects in order. This is important because it means that when one of the effects stops applying, you just remove it from the list. For example, if Gaea's Liege leaves the battlefield, the land will be an island.


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