Calciderm

Destroy target land.

Flying Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) When this creature enters or leaves the battlefield, you gain 2 life.

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

First strike This creature gets +1/+1 as long as you control another white creature.

Sacrifice this creature: Target creature you control gains protection from the color of your choice until end of turn.

While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.

1W: Target permanent you control gains protection from white until end of turn. 1: Target spell or permanent becomes white until end of turn.