Sliver WeftwinderHow it works & interactions with other cards

Harnessing the Warp

Sliver Weftwinder grants all Sliver cards in your hand Warp {3}. This allows you to cast them for their warp cost; if you do, as they resolve, you'll exile them and create a delayed trigger to cast them again for free at the beginning of your next upkeep. Additionally, the Weftwinder itself has Warp {3}, making it easy to cycle through your deck while building a board presence.

Conjuring the Hive

Whenever a Sliver creature you control enters the battlefield, a new ability triggers. You first conjure a random card from the Slivers Spellbook—a curated list of Sliver cards—into your library. This card is placed randomly within the top five cards of your library. Immediately after this, you draw a card, potentially drawing the very Sliver you just conjured.

Strategic Placement and Timing

A common mistake is forgetting that the 'conjure' effect happens before the draw. Because the conjured card is placed in the top five cards at random, you have a 20% chance to draw that exact card immediately. To maximize value, play this card when you have enough mana to sustain the 'Warp' costs, ensuring a constant stream of creatures entering and triggering the Spellbook ability.

Interaction examples

Double the Conjurations

Roaming Throne

If you control Roaming Throne with the chosen type 'Sliver', and then Sliver Weftwinder or another Sliver enters the battlefield, the triggered ability will trigger twice. You will conjure two random cards from the Slivers Spellbook into your top five cards and draw two cards total.

Value Engine Synergy

Solemn Simulacrum

While Solemn Simulacrum is not a Sliver and doesn't receive the Warp keyword, its presence helps you reach the five colors required to cast Sliver Weftwinder. Once the Weftwinder is on the board, every Sliver you cast afterward will replace itself in your hand thanks to the draw trigger, while the Golem provides the lands needed to pay for those Sliver cards.