#hifiblu

[someothermonstra]

We were like 19 in this picture 💕

[mtgfan]

hifiblu replied to your post: ...

Not true, planeswalker abilities are at sorcery speed. Hero’s downfall at instant speed will go through before the ability.

Remember there are no speeds in Magic, only the mighty Stack. And as every Magic player should know, the stack resolves First In, Last Out. Planeswalker abilities can only be activated as a sorceries - when the stack is empty, it's your turn, and it's a main phase. After a spell resolves, in this case the Planeswalker stops being a spell and turns into a Planeswalker permanent on the battlefield, that player gets priority to activate an ability. Then that player can pass priority to see if the other players in turn order want to respond to it. Any responses are then resolved First In, Last Out order.

Remember, abilities are independent of their sources.

112.7a Once activated or triggered, an ability exists on the stack independently of its source. Destruction or removal of the source after that time won't affect the ability. Note that some abilities cause a source to do something (for example, "Prodigal Pyromancer deals 1 damage to target creature or player") rather than the ability doing anything directly. In these cases, any activated or triggered ability that references information about the source because the effect needs to be divided checks that information when the ability is put onto the stack. Otherwise, it will check that information when it resolves. In both instances, if the source is no longer in the zone it's expected to be in at that time, its last known information is used. The source can still perform the action even though it no longer exists.

In this case, Chandra will be destroyed because Hero's Downfall resolves first on the stack, but will not "counter" the ability or prevent it from being activated.