Spend the Lonely Buff

You're on 6. Rengar is on 7 and holds both battlefields — if he still holds one when his turn starts, he wins. His runes are spent. Emperor's Dais (A): Rengar, Trophy Hunter (6) and Elnuk Herd (5). Startipped Peak (B): Irresistible Faefolk (1). At your base: Sunlit Guardian (3, Tank[Tank]) and Stalwart Poro (2) with a buff. In your Champion Zone: Lee Sin, Centered (6; Accelerate[Accelerate]: pay [1] + Body more to have him enter ready; "Other buffed friendly units at my battlefield have +2 Might"). In hand: Wallop (Action[Action], 2: "As you play this, you may spend a buff as an additional cost. If you do, ignore this spell's cost. Ready a unit."), Discipline (2) and Stand United (3). Seven ready runes; Blind Monk ("[1], Exhaust[T]: Buff a friendly unit") is Ready. Take both battlefields.

• 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.