What does 'here' mean when used on cards that aren't Battlefields, and does it get re-evaluated when checking target legality?

Ruling: 'Here' refers to the current location of the card (base, battlefield 1, or battlefield 2). When checking target legality on resolution, 'here' is re-evaluated to the card's current location, not locked to where it was when the target was chosen.

Sequence:

• When a spell or ability is put on the chain, targets are chosen based on current game state
• When the spell/ability resolves, target legality is checked again
• If a unit has moved zones (including between base and battlefield), 'here' now refers to its new location
• If the new location doesn't meet the targeting requirements, the target becomes illegal

Nuances:

• While 'here' is not explicitly defined in the rules for non-Battlefield cards, it is treated as self-explanatory by the rules writers
• The community has reached consensus on this interpretation despite lack of explicit rules text