Yes, in the 2017 set of Magic: The Gathering, planeswalkers can be used as commanders in the Commander format.
Yes, planeswalkers can be used as commanders in Magic: The Gathering if the format allows it, such as in the Commander format.
Yes, legendary planeswalkers can be used as commanders in Magic: The Gathering if they have the specific text allowing them to be used as such.
Yes, legendary planeswalkers can be used as commanders in Magic: The Gathering if they have the specific text allowing them to be used as such.
I presume that you mean set blocks? Zendikar Block has 6 Planeswalkers Lorwyn Block has 5 Planeswalkers Alara Block has 5 Planeswalkers M10 has 5 Planeswalkers (these are reprints of the Lorwyn Planeswalkers) The best planeswalkers are found in Zendikar Block: Gideon Jura, Jace 2.0, Nissa Revane and Sarkhan the Mad
No, not all planeswalkers are legendary.
Yes, planeswalkers do not have haste when they enter the battlefield.
To effectively target planeswalkers with spells in Magic: The Gathering, you can use spells that specifically target planeswalkers or spells that deal damage to any target. Additionally, you can use creatures with abilities that can target planeswalkers or use cards that can redirect damage to planeswalkers. It's important to have a diverse range of spells and strategies to effectively target planeswalkers in the game.
No, lifelink does not work on planeswalkers in Magic: The Gathering.
Yes, planeswalkers are considered legendary in Magic: The Gathering.
Yes, planeswalkers are considered permanents in Magic: The Gathering.
Yes, planeswalkers are considered legendary in Magic: The Gathering.
It depends on the card and the circumstances, but in many cases yes. Planeswalkers are always very good.