Self-Insert

Enchant player.
Enchanted player is also a creature with power
and toughness each equal to the number of lands
they control. They are still a player.
When enchanted player becomes tapped, also tap
Self-Insert to visually indicate the tap status of enchanted player.
Enchanted player's toughness is only affected by
combat damage.
If enchanted player would die as a creature,
instead destroy Self-Insert.