Ally
The ally creature type was introduced in Zendikar. When an ally comes into play it triggers its own ability and the ability of other allies already in play.
Rulings
- Some Allies, such as Nimana Sell-Sword, have abilities that put +1/+1 counters on them. These abilities trigger when they enter the battlefield themselves, so even though Nimana Sell-Sword will enter the battlefield as a 2/2 creature, it will become a 3/3 creature almost immediately. But they'll be more vulnerable to instants and abilities while their triggered abilities wait to resolve.
- Some Allies have abilities that, when they resolve, grant an ability to all Allies you control. These affect only Allies you control at the time the ability resolves.
- Some Allies have abilities that, when they resolve, do something based on the number of Allies you control. These count the number of Allies you control as they resolve.
- When an Ally enters the battlefield under your control, each applicable triggered ability of the Allies you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one that resolves.
- If more than one Ally enters the battlefield under your control at the same time due to some spell or ability, they'll all see each other enter the battlefield. For example, if two Nimana Sell-Swords enter the battlefield at the same time, each one's ability will trigger twice (once for itself and once for the other one), and they'll each wind up as 4/4 creatures.
Trivia
- Root-Kin Ally doesn't have the subtype Ally, yet.