Key to the City

When does this artifact provide mana?

When it enters the realm, and at the start of its controller's turn.

How does this ability work?

Site abilities cannot target, damage, destroy, banish, modify, move, or impede the movement or attacks of the bearer of the Key. Additionally, site abilities cannot cause the bearer to lose or gain life, and cannot affect healing the bearer receives. For example: Gnome Hollows will not stop a 3+ power Key bearer from entering. A Key bearer can walk over a . will not a Key . cannot cause the to . An Key will not gain from or from . An Key will not have its reduced by . (The itself must hold the Key to ignore the half effect from .) will not destroy a Key , even when it's not the chosen . can't a Key . Many effects won't apply, as part of '': can't a Key can't disable a Key can't immobilize a Key can't a Key can't increase or decrease a Key 's can't break a Key 's Some abilities will continue to work: will still allow a Key to a (since players actually spells, not units). will still stop a Key from drawing extra spells (since players actually spells, not units). will still count an Key . with the Key still can't destroy a . A Key will still have to pay (2) extra for , since gaining and paying is done by the player. A Key will still be able to use the threshold provided by 's , since tracking threshold is done by the player. would still banish a non- Key , since the game itself is banishing the .