Hermit, Crab Researcher

{1}, {t}: Add an amount of {c} equal to Hermit,
Crab Researcher toughness. This mana cannot
be spent to cast spells from your hand.
{2}, {t}: Target player draw two cards, then
sacrifice a permanent.
{3}, {t}: Target player draw four cards. Then discard two cards unless you discard an instant or sorcery card.
{4}, {t}: Target player draws three cards. Then that player discards two cards unless they discard a land card.
{7}, {ut}: Target player discards a card.