Rikku, Resourceful Guardian

Gameplan

Rikku is a mono-blue +1/+1 counters deck that turns counter generation into unblockable damage—any time you add counters to a creature, it can't be blocked that turn, letting you swing for commander damage or chip the table down. You build up proliferate and counter-doubling engines, then convert a single beater into an evasive threat, while Rikku's Steal ability lets you strip counters off opponents' creatures to neuter their bombs and pad your own.

Key Cards

• Hardened Scales — Multiplies every counter you add, accelerating Rikku's evasion trigger and your creature's size.
• Inexorable Tide — Proliferate every time you cast a spell triggers Rikku and snowballs your counters.
• Doubling Season — Doubles counters placed, making each evasive swing massive.
• Ozolith, the Shattered Spire — Adds extra counters and doubles them, repeatedly firing Rikku's unblockable trigger.
• The Ozolith — Banks counters off dying creatures so a board wipe doesn't reset your engine.
• Steel Overseer — Repeatable counter source that triggers Rikku each turn while pumping your team.

Upgrade Path

Add counter-doubling stax-lite pieces (Hardened Scales, Branching Evolution, Conclave Mentor effects with proper colors aside) and proliferate density to make Rikku trigger every turn, plus protection like Swiftfoot Boots, Heroic Intervention substitutes, and counterspells to shield your threat. Lean on cheap evasive bodies that scale—Walking Ballista and Hangarback Walker double as removal and counter banks. Tighten the manabase with fast rocks (Sol Ring, Mana Vault) and a strong card-draw suite so you reliably present a lethal unblockable creature by mid-game.