Ishai, Ojutai Dragonspeaker

Flying
Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker.
Partner (You can have two commanders if both have partner.)
Card Type Breakdown
Land
36 cards
Artifact
7 cards
Instant
10 cards
Sorcery
11 cards
Creature
26 cards
Enchantment
8 cards
Planeswalker
1 cards
Frequent Cards
Land
Command Tower 68%
Arcane Sanctum 42%
Evolving Wilds 42%
Terramorphic Expanse 37%
Prairie Stream 32%
Hallowed Fountain 32%
Temple of the False God 32%
Azorius Chancery 32%
Sandsteppe Citadel 32%
Seaside Citadel 32%
Artifact
Sol Ring 63%
Commander's Sphere 32%
Chromatic Lantern 32%
Swiftfoot Boots 26%
Azorius Signet 26%
Lightning Greaves 21%
Selesnya Signet 21%
Orzhov Signet 16%
Simic Signet 16%
Fellwar Stone 16%
Instant
Swords to Plowshares 42%
Counterspell 32%
Cyclonic Rift 26%
Generous Gift 26%
Utter End 26%
Despark 26%
Mortify 21%
Return to Dust 21%
Fact or Fiction 21%
Render Silent 16%
Sorcery
Supreme Verdict 32%
Wrath of God 26%
Farseek 26%
Time Wipe 21%
Cultivate 21%
Winged Words 21%
Rampant Growth 16%
Fumigate 16%
Explosive Vegetation 16%
Migratory Route 16%
Creature
Ikra Shidiqi, the Usurper 32%
Sunscorch Regent 26%
Warden of Evos Isle 21%
Ravos, Soultender 21%
Aven Mindcensor 21%
Corpsejack Menace 16%
Forgotten Ancient 16%
Reyhan, Last of the Abzan 16%
Vorel of the Hull Clade 16%
Baleful Strix 16%
Enchantment
Ghostly Prison 21%
Gravitational Shift 16%
Favorable Winds 16%
Citadel Siege 16%
Cathars' Crusade 16%
The Eldest Reborn 11%
Assault Formation 11%
Corrupted Conscience 11%
Aqueous Form 11%
High Alert 11%
Planeswalker
Ajani, Mentor of Heroes 11%
Elspeth, Sun's Champion 11%
Ajani Steadfast 5%
Dovin, Grand Arbiter 5%
Jiang Yanggu, Wildcrafter 5%
Ajani, Caller of the Pride 5%
Kiora, Behemoth Beckoner 5%
Ajani, Adversary of Tyrants 5%
Serra the Benevolent 5%
Huatli, the Sun's Heart 5%