Halp? (Act II)

[CbStrad]

So I'm helping a friend put together a U/R deck. We're hoping to make use of {Chandra, Pyromaster} and {Young Pyromancers}. What kind of cards would be a good idea?

[Mlerner12]

{Molten Birth}.

[Vyse]

 {Krenko's Command},  {Battle Hymn},  {Past in Flames},  {Reverberate},  {Massive Raid} or  {Burn at the Stake}. Edit: blue too- {Goblin Electromancer}  {Augur of Bolas} maybe  {Nivix Cyclops} or  {Stolen Goods}?

[InfinitiveDivinity]

{Talrand the Sky Summoner}. {Think Twice}, {Cackling Counterpart}.