Budget deck : Eye of Twilight

Shen, Eye of Twilight exhausts to give a friendly unit Tank this turn, even in their showdown: it takes combat damage first. Your best cards want exactly one other unit of yours at their battlefield. Fight in pairs, never three: Tank on the big one keeps the small one alive.

Mulligans: keep two cheap units (Disciple of Shen, Mournful Witness, Noxian Emissary) and Sacred Protector. Send back Shen, Leader of the Kinkou Order, Pakaa Protector and Dragon Form. Shen, Kinkou waits in your champion zone.

Early game: two 2-cost units, then move them in together. Mournful Witness is a 4 after its first combat. Hide Disciple of Shen for a rune: from the next turn it comes in as a Reaction for 0 energy, and beside one unit of yours it defends as a 4. With a pair at a battlefield you control, Keeper of Law costs 3 energy, no rune. Pick Kinkou Temple when you can: Tank units get +1 there.

Mid game: Sacred Protector, a 6 for 4, deals combat damage only in a pair: with Tank, they must kill a 6 before touching the other. Hand Hammer is +3 in a pair. Field Musicians gives a unit +3 as it lands. Serene Ascetic Empowered for 3 defends as a 6 with Deflect. Once they attack, Shen, Kinkou, Soulspinner (Ambush) and Resonating Strike (+2) turn a lone defender into a pair. Thwonk! stuns one attacker, two with Repeat. Ki Barrier on your Tank: they need 7 more damage to kill it. Lacerate kills 3 Might or less: cast it before you move.

Late game: holding with exactly one other unit, Shen, Scourge of Shadows draws 1 and Shen, Leader of the Kinkou Order scores 1: 2 points a turn with the hold, and either can be your 8th. Insurance: Twilight Shroud before you move, +1 and enemy spells and abilities can't choose the unit this turn. Flow replays it for 2.

Mistakes to avoid: - A third unit at a pair's battlefield - Sacred Protector alone: it deals no combat damage - Exhausting the legend on a turn with no fight - Twilight Shroud after their removal: it is not a Reaction