You need some knowledge about how the opposing deck is using their graveyard, so you know when to crack this
You can take your opponents' stuff for yourself if you deal damage with enough pirates
Although theres certainly no IEEE standard for tribal decks, Id say that at least half the creatures have to be of the creature type in question in order to consider it tribal
If you do, each opponent loses 1 life and you gain that much life.) Whenever this creature attacks, you may return target artifact, creature, or enchantment card from your graveyard to your hand
Of course, this last part also benefits the creatures controller, but thats the beauty of this cardit can save your creature from dying in combat while also letting you draw cards
There are trigons for the five colors, but the only one with Infect is the green one.