Beloved Bot

Indestructible, Trample
Beloved Bot's power is equal to the number
of Fairies you control.
As long as you control Beloved Bot, you can't
lose the game. At the end of each turn, put
a Rust counter on Beloved Bot.
When Beloved Bot has 10 or more Rust counters
on it, sacrifice it.
If Beloved Bot leaves play, you lose the game.
Sacrifice two Fairies: remove a Rust counter from
Beloved Bot.