20 Dollars

Fading 5
If this fades you may search your library, hand
and graveyard for a Slenderman card and play it without paying its mana cost, then tap all other creatures and put a +1/+1 counter on
Slenderman for each creature tapped this way
{1}: Put a dollar counter on this enchantment,
any player may activate this ability. If there are
20 dollar counters on this destroy it