Draining Cut can be handy if one is lacking HP and wants to do a bit of damage at the same time
This will allow you to cast massive X-cost spells like Nissa, Steward of Elements , Aggressive Biomancy , and Hydroid Krasis to hopefully win the game
If you are involved in an attrition war, simply ramming Avarax after Avarax into your opponent in the later stages of the game is going to win you a lot of matches
Sinistcha evolves from Poltchageist and has some incredibly useful abilities, like healing 30 damage from each of the player's Pokmon with its powerful "Matcha Splash" attack
For example, Illuna, Apex of Wishes from Ikoria had an alternate version called Ghidorah, King of the Cosmos
So while it doesn't sound like the suspected thief got off with anything valuable like a rare Charizard card, it was still quite a haul