The Dark Lady

Hexproof
{t}: Put an Information counter on
The Dark Lady. Each opponent loses 1 life and
you scry 1.
At the beginning of your upkeep,
if The Dark Lady has ten or more
Information counters, exile it, then
create a 10/10 legendary dragon creature token,
that is all colors, with flying, haste and indestructible named
Tiamat, Chromatic Dragon.