Anchor is a common relic that provides 10 Block at the start of each combat.
Strategy
This relic's ability makes your turn 1 easier, as you do not need to spend as much Energy on defense. This means you could either attack right away, or, more effectively, play Power cards on your first turn safely. Because of this, decks that rely on (likely Innate) Powers find this relic very useful.
Bottled Lightning: Allows to play the bottled Skill safely, but the Skill may also be a Block card.
Boot Sequence: Mostly becomes redundant with this relic and takes one space on your first draw. However, together they can be useful against hard-hitters such as Taskmaster mob.