Menace (This creature can't be blocked except by two or more creatures.)

Tunnel Snakes Rule — Whenever Butch DeLoria, Tunnel Snake attacks, it gets +1/+1 until end of turn for each other Rogue and/or Snake you control.

: Put a menace counter on another target creature. It becomes a Rogue in addition to its other types.

When Fire Snake dies, destroy target land.

Flash

When Mystic Snake enters the battlefield, counter target spell.

, Sacrifice Snake Basket: Create X 1/1 green Snake creature tokens. Activate only as a sorcery.

Tribute 3 (As this creature enters the battlefield, an opponent of your choice may put three +1/+1 counters on it.)

When Snake of the Golden Grove enters the battlefield, if tribute wasn't paid, you gain 4 life.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)