Thomas, the tranquil

You have no maximum hand size.
Whenever you draw a card, you get {e}.
{w}{u}{b}{r}{g}: Exile your hand, then put all cards
in your graveyard in your hand, then put all cards
exiled by this effect into your graveyard. You can
only play permanents the turn you activate this
effect. You can only activate this effect if you
have at least {e}{e}{e}{e}{e}{e}{e}{e}{e}{e}.
"What's a worry?"