What keyword allow you to target a planeswalker?
I believe any time you are able to deal damage to a player
You may redirect the damage to a planeswalker. However. It must be damage. Not "lose life"
306.7. (http://imtgapp.com/forum/index.php?action=imtg;area=rule;number=306.7.): If noncombat damage would be dealt to a player by a source controlled by an opponent, that opponent may have that source deal that damage to a planeswalker the first player controls instead. This is a redirection effect (see rule 614.9) and is subject to the normal rules for ordering replacement effects (see rule 616). The opponent chooses whether to redirect the damage as the redirection effect is applied.
Quote from: Destore117 on January 19, 2014, 01:57:42 AM
306.7. (http://imtgapp.com/forum/index.php?action=imtg;area=rule;number=306.7.): If noncombat damage would be dealt to a player by a source controlled by an opponent, that opponent may have that source deal that damage to a planeswalker the first player controls instead. This is a redirection effect (see rule 614.9) and is subject to the normal rules for ordering replacement effects (see rule 616). The opponent chooses whether to redirect the damage as the redirection effect is applied.
Thank you kindly :)
Keyword in magic refers to flying, first strike, shroud, etc. Abilities that can be printed in a single word and may be accompanied by reminder text. Cipher, Battlion, extort, and inspiration are also examples of keyword abilities but these lesser used mechanics almost always have reminder text. Sometimes keywords evolve from often used phrases such as hexproof and sometimes they start as one time keywords and later become a more staple keyword like bloodrush and scry.