Due to Synchro, XYZ, and especially Pendulum monster - the Yugioh game is a bit too fast pace for some, Link Monster seems to be created to slow down the game... which btw many don't like, anyways I'm not here to praise or complain .. just to get some clarification..
Once the new game\rule comes out, you are only allowed to summon only 1 Extra Deck monster, unless you use a Link monster that can opened more Extra deck monster zone , that is the 1st purpose\effect ... the issue is that it also can opened extra deck M Zone for your opponent, here is where I need clarification, the 2nd purpose is that link monster can share the effect to monster link to it, ex a Link monster has an effect that you gain 200 atk , any link monster also gets the effect, but it doesn't state that if the opponent gains that effect, all it says is that it open the zone for Extra deck Monster, I just need to know does it also passed the affect to the opponent or just opens the zone?