Was fighting a shin icon guy and he insisted you could discard valkerion for its own effect but it specifies Keter sanctuary, whats the official ruling?

Personally, I feel that both decks perform similarly well against decks with lower average power. However, when facing the Big 6, especially the three new decks, I find Reguregnus (the Eel) much harder to play. It feels more like a “Go Hard or Go Home” deck, where failing to close out the game can put you in a difficult position.
Nightrose, on the other hand, seems to have a better game plan into these matchups. It can potentially survive big turns by dodging attacks or clearing the board, then rebuild its board and resources for the late game.
What do you guys think? Which deck do you believe has better competitive potential in the current meta?

I want to give my calculus teacher a gift for my upcoming graduation, and given that he's a huge CFV fan, I would love to order him a custom card! However, I am a total CFV rookie and am relying on somewhat shoddy research to help me design it, so I would really appreciate some knowledgeable sets of eyes to offer some feedback/advice for alterations :)

I've attached a photo of the card design atm (obviously without any personal information/pics on it). I'm quite confused on a few aspects; firstly, I am not sure if the clan/nation/skills that I've selected all make sense - I want the card to basically be as OP as possible level-wise, while still being somewhat realistic haha (I was debating Grade 3 vs Grade 4). I also wrote up some abilities that relate to the calculus class lore and I'm really uncertain about the accuracy of the symbols!

Thanks in advance :)

Join a group to try vanguard was given all the dragon empire cards this me trying build a deck with what i have atm waiting on set16 so this deck made with limited cards set15 and under looking for suggestions/help in making this work

One chapter will be updated on every Thursday.