These abilities provide creatures with a boost for as long as you control a land of a certain type. As an example, Dauntless River Marshal states, “Dauntless River Marshal gets +1/+1 as long as you control an Island.” Dauntless River Marshal will always be looking to check if you control an Island, and as long as you do, he will get an additional +1/+1. Now, he does not come into play as a 2/1, then become a 3/2. While he is on the field, alongside an island, he will always be a 3/2. This means that he will come in as a 3/2, triggering effects such as Garruk’s Packleader.
Now there are some times when the trusty River Marshal is not looking to see if you have islands… When Dauntless River Marshall is not on the battlefield, his static ability is not active, meaning in the graveyard he will be a 2/1, even if you control an island. If your opponent uses a Rotfeaster Maggot to exile the Marshall, only 1 life would be gained. While this may seem odd, it is important to make sure that the game is played correctly, or you could end with an opponent with an extra point of life.
In short, make sure you are Dauntless in checking whether your static abilities are active or not, because the River Marshall surely will be.
Today’s Rules Tip written by James Arriola