This creature can't be blocked.

Flash Deathtouch

Counter target artifact or enchantment spell.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Counter target spell.

Choose one — • Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) • Counter target noncreature spell unless its controller pays {3}.

Destroy target artifact. Add {G}{G}{G}.

Devoid (This card has no color.) Flash When you cast this spell, counter target spell an opponent controls unless they pay {1}. Flying

Morph {4}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is turned face up, counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may cast that card without paying its mana cost for as long as it remains exiled.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

Flash When this creature enters, counter target spell.

Megamorph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.) When this creature is turned face up, counter target spell unless its controller pays {3}.

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Put a +1/+1 counter, a reach counter, and a deathtouch counter on target creature. Untap it.

Whenever you draw a card, put a +1/+1 counter on this creature.

This spell can't be countered. Creature spells you control can't be countered.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

You may exert this creature as it attacks. When you do, it gets +2/+2 until end of turn. (An exerted creature won't untap during your next untap step.)

{T}: Add one mana of any type that a land you control could produce.

Whenever a creature you control deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end.

Sacrifice this creature: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

{T}: You may put a land card from your hand onto the battlefield.

Whenever another nontoken creature you control enters, investigate. {T}, Sacrifice X Clues: Target opponent reveals the top X cards of their library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield under your control. That player puts the rest on the bottom of their library in a random order.

Attacking creatures you control have deathtouch. Whenever a creature you control deals combat damage to a player, draw a card.

Other Snake creatures you control get +2/+2. Whenever a Snake you control deals combat damage to a player, you may draw a card.