If it's a creature or planeswalker card, you may reveal it and put it into your hand
Is Ajani depicted in Heroic Intervention enough to be considered on theme
In this case it deals damage to that lands controller

Chaotic Wyll | Commander | Matthew Lotti Commander (2) 1 Wyll, Blade of Frontiers 1 Raised by Giants Creatures (17) 1 Ancient Bronze Dragon 1 Ancient Copper Dragon 1 Atalan Jackal 1 Brazen Dwarf 1 Centaur of Attention 1 Chaos Channeler 1 Chaos Dragon 1 Delina, Wild Mage 1 Evolution Sage 1 Guardian Augmenter 1 Kediss, Emberclaw Familiar 1 Neverwinter Hydra 1 Neyith of the Dire Hunt 1 Tangled Florahedron 1 The Space Family Goblinson 1 Vorinclex, Monstrous Raider 1 Vrondiss, Rage of Ancients Instants (13) 1 Artifact Mutation 1 Berserker's Frenzy 1 Chaos Warp 1 Choose Your Weapon 1 Critical Hit 1 Heroic Intervention 1 Khalni Ambush // Khalni Territory 1 Pair o' Dice Lost 1 Road // Ruin 1 Song of Inspiration 1 Tyvar's Stand 1 Wild Magic Surge 1 Wyll's Reversal Sorceries (16) 1 Bala Ged Recovery // Bala Ged Sanctuary 1 Barroom Brawl 1 Blasphemous Act 1 Chandra's Ignition 1 Crackle with Power 1 Cultivate 1 Farseek 1 Hull Breach 1 Rampant Growth 1 Reckless Endeavor 1 Shatterskull Smashing // Shatterskull, the Hammer Pass 1 Skyshroud Claim 1 Smell Fear 1 Song-Mad Treachery // Song-Mad Ruins 1 Turntimber Symbiosis // Turntimber, Serpentine Wood 1 Wild Endeavor Enchantments (3) 1 Barbarian Class 1 Maddening Hex 1 Priority Boarding Artifacts (19) 1 Arcane Signet 1 Bag of Tricks 1 Chaos Wand 1 Component Pouch 1 Ebony Fly 1 Embercleave 1 Everflowing Chalice 1 Fractal Harness 1 Goblin Morningstar 1 Gruul Signet 1 Lightning Greaves 1 Portal to Phyrexia 1 Strength-Testing Hammer 1 Swiftfoot Boots 1 Sword of Hours 1 Talisman of Impulse 1 The Deck of Many Things 1 Vexing Puzzlebox 1 Wand of Wonder Lands (31) 6 Forest 6 Mountain 1 Blast Zone 1 Boseiju, Who Endures 1 Cinder Glade 1 Copperline Gorge 1 Fire-Lit Thicket 1 Forgotten Cave 1 Fungal Reaches 1 Karplusan Forest 1 Kessig Wolf Run 1 Lair of the Hydra 1 Rockfall Vale 1 Rootbound Crag 1 Scavenger Grounds 1 Skarrg, the Rage Pits 1 Spire Garden 1 Stomping Ground 1 Tranquil Thicket 1 Underdark Rift 1 Wooded Foothills Wyll, Blade of Frontiers seeks to come down early and immediately start growing from all the dice we'll be throwing

With enough Merfolk on the field you can churn through your deck, add additional+1/+1 counters, play additional land or draw
Supporting one of the most popular archetypes in Commander its safe to say that excitement is high for this deck