Corrupted Zendikon

When a land becomes a creature, that doesn't count as having a creature enter. The permanent was already on the battlefield; it only changed its types. Abilities that trigger whenever a creature enters won't trigger.

If a Zendikon and the land it's enchanting are destroyed at the same time (due to Akroma's Vengeance, for example), the Zendikon's last ability will still trigger.

The enchanted permanent will be both a land and a creature and can be affected by anything that affects either a land or a creature.