Since Invasion' s creature wars usually began on turn two, you could drop a turn two bear, and then hold back Exclude for anything your opponent might drop
You'll be better off pairing Swarm Intelligence with something like Talrand or Voracious Reader to turn all those spells into damage, but even without either of them, Swarm Intelligence provides multiplicative value to every instant or sorcery cast
It does best in mono-green, of course, but I could see running it in a 2-color deck
According to Scryfall , a popular MTG database, there are roughly 29,170 unique card names in paper
Hoopa-EX Hoopa-EX is not in the skeleton list because people often like to stray from using it, since it can be an easy Lysandre bait and can leave you stumped for a while, but if you'd like to add it just Tidal Storm the Energy into it as soon as you can and you shouldn't have any issue