While you could use any energy type to fullfil these requirements, a Double Colorless Energy would provide two energy in a single turn
If you want to talk numbers, Id say 8-10 pieces of mana ramp is a good number to aim for, but thats very arbitrary
In particular, this is just one of the 8 "Dark" Pokmon in this special set
Spearow Tiny Bird Pokmon Source: official-artwork Source: official-artwork Genera Tiny Bird Pokmon Evolution Line Spearow Spearow 557/742 Start Deck 100 Battle Collection Spearow 052/063 Mega Brave Spearow 074/063 Mega Brave Spearow 021/165 Pokmon Card 151 Spearow 021/165 Pokmon Card 151 Spearow 328/414 Start Deck 100 Spearow 328/414 Start Deck 100 Spearow 055/070 Single Strike Master Spearow 039/054 Full Metal Wall Spearow 045/060 Collection Moon Spearow 052/078 Emerald Break Spearow 066/088 Phantom Gate Spearow 047/070 HeartGold Collection Spearow DPBP#021 Moonlit Pursuit Spearow 050/075 Miracle Crystal Spearow 035/052 Venusaur, Charizard, Blastoise Random Constructed Starter Deck Spearow 009/018 Gift Box ADV Spearow 027/128 Base Expansion Pack Spearow 13 Intro Pack Lt
Seems like a classic black thing to do, and sure most of these are in that color, but there may be a few surprises here
Sins ability doesnt just put the permanents you randomly select into play but rather gives you token copies
