Lightning Pokmon are strong against : Water Pokmon (plus, any Flying-type Pokmon in the video games)
The deck starts by playing a number of different efficiently costed spider creatures, many of which have strong secondary abilities including creating more spider tokens (Arasta, Brood Weaver, Drider, Penumbra Spider, Twin-Silk Spider, etc), card draw (Doom Weaver), removal effects (Acid Web Spider, Skyfisher Spider, Stingerfling Spider), anthem/counter effects (Sweet-Gum Recluse), reach, deathtouch, and many more abilities
This card showcases a pivotal moment with bold artwork and alternate design
Charizard's damage is also impressive, making it a great offensive unit too
Notably, if you control multiple Asylum Visitors during your upkeep, whichever one's first ability resolves first will stop the other's first ability from having any effect unless you have a way to get the card you drew out of your hand before it resolves
Horn of Valhalla Apart from being a very fun D&D magic item, Horn of Valhalla is perfect for token decks