For starters, there's a whole lot of potential in the card itself, even if you want to just opt for the equally as beautiful, if a little less expensive, Legendary variant (which is valued at just under $6 right now)
That means it's best for more experienced TCG players
Some of the vast range of abilities include effects like: Banish a character or item Damage or heal a character Draw cards, or look at the top few cards of your deck Gain Lore or steal your opponents Lore Exert an opponents character or ready one of yours There are many more, and different ink colors tend to have more of certain abilities
New-to- Magic cards like Rejoin the Fight focus on getting back up and continuing to battle, while other epic moments are captured in reprints, as seen in Rise of the Dark Realms
Characters enter play in a ready (upright) state but cant act on the same turn theyre played (they have summoning sickness, described as their ink still drying
Specifically, theres a great synergy with Yshtola, Nights Blessed, which has caused Sigil of Sleep to spike over 700%