Rumble

Yes, but we see why you’d ask. The rules use a “NULL” system for values that aren’t available, such as the Might of a unit that’s been removed from the board. The unit is gone and the information is missing, so you can’t do any calculations or comparisons with it (not even “is it no more than 1?”).

That system could reasonably be applied to the costs of tokens, but we feel that results in unintuitive situations, like not being able to kill a Gold token with Pickpocket. After all, the token’s not missing; it just doesn’t have a cost because it doesn’t need one. We’ll be updating the rules to clarify that the cost of a token can be treated as 0 for all purposes.

Rumble, Hotheaded

Source: Riftbound Spiritforged FAQ

Yes, he can. This is a minor gap in the rules. Main Deck cards are recycled to the Main Deck and runes are recycled to the Rune deck, but tokens aren’t actually either of those things. We’ll be clarifying in a future rules updates that tokens “inherit” the recycle destination of their type(s), so a token that’s a unit or gear is recycled to your Main Deck just like any other gear. It then vanishes, as tokens do any time they leave the board, but it still counts as “the unit you recycled” and Rumble can check its Might.

Svellsongur

Source: Riftbound Spiritforged FAQ