Rishadan Footpad

When this creature enters, each opponent sacrifices a permanent of their choice unless they pay {2}.

Sailmonger

{2}: Target creature gains flying until end of turn. Any player may activate this ability.

Flying
{2}: This creature loses flying until end of turn. Any player may activate this ability.

Whenever Shrouded Serpent attacks, defending player may pay {4}. If that player doesn't, Shrouded Serpent can't be blocked this turn.

{X}{U}, {T}, Discard two cards: Return X target creatures to their owners' hands.

When this creature enters, target opponent loses 2 life and you gain 2 life.

{X}{B}, {T}, Discard two cards: Target player discards X cards at random.

{4}: Return target creature card from a graveyard to its owner's hand. Any player may activate this ability but only as a sorcery.

Whenever a nontoken permanent is put into a player's graveyard from the battlefield, that player loses 1 life.

Flying (This creature can't be blocked except by creatures with flying or reach.)
This creature can block only creatures with flying.

{3}{U}, {T}, Discard a card: Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.

Defender (This creature can't attack.)
{1}{B}: Regenerate this creature.

Destroy target nonblack creature. It can't be regenerated. You gain life equal to its toughness.

When this enchantment enters, sacrifice all creatures you control.
Creatures you control get +2/+2.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.

When a creature enters, sacrifice this artifact and create X 2/2 green Monkey creature tokens, where X is that creature's mana value.

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

{U}: Tap target creature unless its controller pays {1}.

Whenever this creature becomes blocked, you may draw a card.

When this creature enters, each opponent sacrifices a permanent of their choice unless they pay {1}.

This creature can't be blocked as long as defending player controls an untapped land.