While they're all but forgotten these days, "Ex" cards were the big hotness in the scene during the early-to-mid aughts, and many are worth big cash now - read our full guide to Pokmon Ex cards for more info
It can however be used to create unique multicoloured cards or cards where you get a vastly under priced effect should you be able to get the card in the bin first rather than casting it normally
That being said once hes paired up with strong creatures, he goes bananas in terms of value
The combination of card advantage and pressure provides lots of impact for one card and Fact or Fiction effects always create interesting subgames for you and your opponent
We know that participation in the side events would result in the accumulation of points that could be exchanged for different prizes
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