Training

Training is a keyword ability introduced in Innistrad: Crimson Vow for Humans of Innistrad. It can only be found on creatures. 
==Description==
When a creature with Training attacks alongside a creature of greater power, you may place a +1/+1 counter on it. Training mirrors the Mentor mechanic, with the recipient and condition swapped and with no target clause. The lack of targeting has various rules implications. To train can also be referred to in the rules text, which occurs on one card () and has since been done with mentor as well (). 
The powers of the attacking creatures are checked only at the moment they attack. Once the training ability triggers, it doesn't matter what happens to the other creature, nor does it matter what happens to the power of either creature. As long as the creature with training is still on the battlefield as the training ability resolves, it will get the +1/+1 counter, even if its power is now equal to or greater than the other creature, it's no longer attacking, or even if the other creature is no longer on the battlefield.
Having more trainers doesn't cause training to trigger additional times.
==Rules==
==Rulings==
*A creature's training ability triggers only when both that creature and a creature with greater power are declared as attackers. Increasing a creature's power after attackers are declared won't cause a training ability to trigger.
*Once a creature's training ability has triggered, destroying the other attacking creature or reducing its power won't stop the creature with training from getting a +1/+1 counter.
==Examples==
==References==