Hold the Signature

Their turn, then yours. You're on 6, Rengar on 5, his runes spent. His Kinkou Initiate (3) has just attacked A, Forbidding Waste ("While a unit here is defending alone, it has -2 Might"), held by a Recruit (1) — and by Kennen, Keeper of Balance (2), hidden face down there last turn ("When you play me or I attack, you may pay [2] to Stun[Stun] a unit. While there's a stunned enemy unit here, I have +2 Might."). Viktor, Innovator (3) is in your base: "When you play a card on an opponent's turn, play a 1 Might Recruit unit token in your base." Kai'Sa, Survivor (4) and Pit Rookie (2) hold B. You hold Siphon Power (Reaction[Reaction], 2 Energy + [C]: friendly units at a battlefield +1 Might this turn, enemy units there -1, to a minimum of 1), Imperial Decree and Thousand-Tailed Watcher, with two runes Ready. Survive his turn, then win yours.

• Move: drag ready units onto a battlefield (or click units, then click where they go). They wait there, faded, until you press Confirm in the panel on the right — units that fight together must move together.
• Runes: playing a card pays from them on its own. To float Energy or Power first, click a rune: Tap gives Energy, Recycle gives Power.
• Cards: drag a card from your hand onto its target, or click it and then click the glowing target. The play waits in the panel on the right until you confirm it (Esc cancels).
• Abilities:click your Legend (one click uses its ability), Gear, or a unit's ✧ badge.
• Point at any card to see it large; right-click to read it. Hint, Undo and Retry are at the top.