Basically, the backup creature can either make itself bigger, or give its abilities to another creature until end of turn (and also make it bigger)
For two mana, you get a blue Artifact that makes it so that all players have no maximum hand size
Glarb, Calamity's Augur Glarb, Calamity's Augur is an early way to play off the top of your library and generally makes it easy to play the best sultai cards
(2022-10-07) You must still pay all costs and follow all normal timing rules when casting spells from among the cards in the booster pack
Old Gnawbone It is also massively formidable, as being able to gain Treasure tokens based on the damage dealt to any foe is a huge boost
Mana Vault easily became the most valuable SLD card of 2024, as it currently has a market price of $1,010.03 on TCGPlayer.com