Sliver Queen + Reflex Sliver + Gemhide Sliver + Training Grounds

Sliver Queen

Reflex Sliver

Gemhide Sliver

Training Grounds

How it works

1. All slivers have haste.
2. Tap a Sliver to generate 1.
3. Use that mana to create a Sliver with Sliver Queen's ability.
4. Use the newly created Sliver to repeat the cycle.

This elegant hive-mind loop lets you flood the board with infinite creature tokens and infinite creature ETB triggers entirely within the span of a single turn. The engine is fueled by Gemhide Sliver, which turns every single member of your swarm into a mana dork, while Reflex Sliver ensures that the newly hatched tokens can tap for mana the exact moment they enter the battlefield without suffering from summoning sickness. The true magic happens thanks to Training Grounds, which bends the rules of economy by slashing Sliver Queen's token-generation cost down to a single generic mana—allowing the exact mana produced by tapping the new token to pay for the next queen activation, perpetuating the cycle indefinitely.