She could instead be Flusterstorm as combo protection that also hits Paradoxical Outcome and TPS, although both of these are also covered by Narset, who does grant card advantage at the cost of two extra mana
It's not necessary (or, in some cases, possible) to identify which roll was the third
Use a monster in your hand, field, or graveyard as a fusion material, return it to the deck, and Fusion Summon 1 Fusion Monster with "Blue-Eyes White Dragon" or "Ultimate Blue-Eyes White Dragon" as a fusion material
Pretty self-explanatory
This is a match made in heaven (or hell?) for Hydreigon, and if this clicks (which it does in most battles), your opponent faces endgame
With Shaymins Sky Return attack, it deals damage before it returns to your hand with all the cards attached to it