When Tree Chancery enters the battlefield, sacrifice it unless you pay .
: Add or to your mana pool.
: Add to your mana pool. Put Tree Chancery on top of your library.
, Sacrifice Tree Chancery: Add to your mana pool.
.
: Add 
or to your mana pool.: Add 
to your mana pool. Put Tree Chancery on top of your library., Sacrifice Tree Chancery: Add to your mana pool.
