If I use Surfer to switch in Yanmega ex, do I draw cards for Surfer first or do I use Yanmega ex's "Buzzing Boost" Ability to search my deck for 
Energy cards first?
You get to choose which you do first.
Buzzing BoostSurfer
Yanmega ex
- Type
- POKEMON
- HP
- 280
- Energy Type
- Stage
- STAGE1
- Retreat Cost
- Weakness
×2- Resistance
-30- Regulation Mark
- I
- Rarity
- DOUBLE_RARE
- Illustrator
- takuyoa
- Set
- Scarlet & Violet—Destined Rivals (DRI)
- Number
- 3/182
Abilities
Buzzing Boost
Once during your turn, when this Pokémon moves from your Bench to the Active Spot, you may search your deck for up to 3 Basic Energy cards and attach them to this Pokémon. Then, shuffle your deck.
Attacks
Jet CycloneMove 3 Energy from this Pokémon to 1 of your Benched Pokémon.
Pokémon ex rule
When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards.