More T4 questions

[Sgt. Pepper]

1: I play a Clone with a Vesuvan Doppelganger in play. Can I choose the Doppelganger with Clone and then choose another creature for the Doppelganger, basically creating my own Vesuvan Doppelganger?

2: Can I use Azorious Guildmage to counter the channel ability of an Jiwari?

3: I attack with a non-flying Morphling and my opponent blocks with a Silvos. If I give the Morphling flying after my opponent declares his blockers, does the Morphling still gets blocked?

4: About Adarkar Valkyrie >>

" Oracle text:
 
Flying, vigilance
T: When target creature other than Adarkar Valkyrie is put into a graveyard this turn, return that card to play under your control. "

Can you choose a creature for this ability while it is still in play, or does the creature has to be in the graveyard already?

5: If I reveal a Hit//Run with Kaboom! how much damage do I deal? 3, 5 or 8?
5b: I play a Hit, what is its converted mana cost on the stack? 3 or 8?

[parallax]

1. If the Vesuvan Doppelganger is still a Vesuvan Doppelganger, then you can choose another creature as your Clone comes into play, and your Clone will be a Doppelganger copying that creature. If the Vesuvan Doppelganger is already copying a creature, your Clone will come into play as a copy of that creature with the Vesuvan ability.

2. Yes. Channel is an activated ability.

3. Yes. Adding or removing flying after blockers are declared has no effect on blocks.

4. You must choose a creature in play when you play the ability. After the ability resolves, if the creature goes to the graveyard later that turn then you put it back into play.

5. Kaboom! deals 3 and 5, or 8, damage when you reveal Hit//Run

5b. 3. The split card on the stack counts as only the side being played.