If a creature has X in its mana cost, that X is treated as 0 for the purposes of this effect. It doesn't matter what the value of X was while the creature was on the stack.

If there's a tie for highest mana value, all of those creatures have protection from all colors.

This effect is checked continuously. If a new creature enters with the highest mana value, it gains protection from all colors and the previous highest loses it.

Kindred is a card type that allows noncreature cards to have creature types. For example, Echoes of Eternity is an Eldrazi (although not a creature) while on the battlefield and an Eldrazi card (although not a creature card) in zones other than the battlefield.

While it appears only on cards that already have other card types, kindred is a card type and will be counted by effects that refer to the number of card types among cards in a zone.

This cards was originally printed with the "tribal" card type. That card type has been replaced with "kindred". This change does not affect the gameplay function of this card.