for reference; a mid advent refers to either
-pets here on tiers 5, 6, and 7 (the middle tiers of the advent list) or
-as a measuring tool when adding up pets in trades which is a value of 6-8 09 rares (ie someone that has 12 09 rares (6 x 2) would be = 2 mid advents worth) ^^
a non refers to either
-around 12 mid advents worth in a trade (give or take some, 10 could still be fair) or
-one of these four pets: non-tag, non-jewel, non-coon or non-swirl
a list pet is any pet that was on the discontinued rares list, which was the main way people used to trade until it got discontinued with how outdated/generally problematic it got. some people still trade using it while others tend to stray from it past the advent list or just trade by rarity changes
based on successful trades the ur lion tends to be valued at a 1.5 - 2 nons range, which would be somewhere around 18-24 mid advents or the 09 rares that add up to that
though if you don't want to trade using nons/lists/mid advents in general (as not everyone does) i recommend looking at the guide to cs rarities which places pets a bit more accurately than the list did, going off rarity tags and rarity changes
using that the lion would be a swap for a ur pickle or could be traded down for pets below it
-pets here on tiers 5, 6, and 7 (the middle tiers of the advent list) or
-as a measuring tool when adding up pets in trades which is a value of 6-8 09 rares (ie someone that has 12 09 rares (6 x 2) would be = 2 mid advents worth) ^^
a non refers to either
-around 12 mid advents worth in a trade (give or take some, 10 could still be fair) or
-one of these four pets: non-tag, non-jewel, non-coon or non-swirl
a list pet is any pet that was on the discontinued rares list, which was the main way people used to trade until it got discontinued with how outdated/generally problematic it got. some people still trade using it while others tend to stray from it past the advent list or just trade by rarity changes
based on successful trades the ur lion tends to be valued at a 1.5 - 2 nons range, which would be somewhere around 18-24 mid advents or the 09 rares that add up to that
though if you don't want to trade using nons/lists/mid advents in general (as not everyone does) i recommend looking at the guide to cs rarities which places pets a bit more accurately than the list did, going off rarity tags and rarity changes
using that the lion would be a swap for a ur pickle or could be traded down for pets below it