Either way, this drastic variation means we cannot give a consistent score for seam strength
For Gandalf specifically, it helps that he was a powerful wizard, which opens up itself to lots of fun card designs, and that his character evolves significantly throughout The Lord of the Rings, Turian explains
Not only was the card banned in Modern for a while, it was a part of one of the most not real Magic decks in the games history: Legacy Manaless Dredge
The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle their library." (6/16/2023) Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text
Ulvenwald Plane: Innistrad At the beginning of your upkeep, you may return target creature or land card from your graveyard to your hand