$sILV2 is a synthetic ILV token on Ethereum of Illuvium and can be used as in-game currency for things like travel and shard curing. It can be earned by staking $ILV in the protocol. $sILV2 is pegged to the value of $ILV for in-game spending power. $sILV2 cannot be used in player to player transactions, such as buying/selling Illuvials.
Illuvium is a collectible NFT RPG game and auto-battler rolled into one. There is an open-world RPG experience in the overworld, where you mine, harvest, capture, and fight Illuvials.