Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays .
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)As Obelisk of Urd enters, choose a creature type.Creatures you control of the chosen type get +2/+2.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Return X target creature cards with mana value 2 or less from your graveyard to the battlefield.
+1: Target player discards a card.−2: Search your library for a card, then shuffle and put that card on top.−8: Put all creature cards from all graveyards onto the battlefield under your control.
Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."
At the beginning of your end step, if you didn't activate a loyalty ability of a planeswalker this turn, you lose 2 life., : For each planeswalker you control, you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn.
+1: Look at the top two cards of your library. Put one of them into your graveyard.−3: Return another target nonland permanent to its owner's hand.−8: Each player shuffles their hand and graveyard into their library. You draw seven cards.
