Card Trivia:Silver Sentinel
- This monster has an upgraded form, "Sunlit Sentinel", as supported by the following:
- They both wear the same damaged blue ushanka.
- They both have effects that can Set themselves as Spell Cards in the Spell & Trap Zone, and can Special Summon themselves from the Graveyard to destroy an opponent's card(s).
- Their Japanese names only differ by 1 syllable:
- 白銀のスナイパー (Hakugin no Sunaipā, lit. "Snow-Silver Sniper"), localized as "Silver Sentinel".
- 白昼のスナイパー (Hakuchū no Sunaipā, lit. "Midday Sniper"), localized as "Sunlit Sentinel".
- This card's effect reflects its sniper motifs: it can "hide" as a face-down Spell Card in the Spell & Trap Zone, only "emerging" when it is destroyed and destroying an opponent's card in turn after it Special Summons itself.
- Before the advent of "Artifact" monsters in Primal Origin, this card and "Toy Magician" were the only monsters that could Set themselves to the Spell & Trap Zone as a Spell Card, with "Toy Magician" predating this card's release by more than 6 years.
