Runebound Wolf I like Runebound Wolf because it can kill opponents in one activation if they get reckless by expending their life total
Thunder Magic (best) Thunder Magic is my pick for the best common removal spell
This deck features a ton of redundancy in both departments, so you can present a turn three kill relatively consistently if Tifa is left unchecked
It blasts two creatures, then freezes blockers, and finally gives you a burst of card filtering and a way to hit opponents based on the mana value of what you discard

Creatures (30) 1 Artisan of Kozilek 1 Ulamog's Crusher 1 Oblivion Sower 1 Drowner of Hope 1 Ulamog's Nullifier 1 Sire of Stagnation 1 World Breaker 1 Endbringer 1 Deepfathom Skulker 1 Vile Redeemer 1 Sifter of Skulls 1 Eldrazi Displacer 1 Elder Deep-Fiend 1 Morophon, the Boundless 1 Ulalek, Fused Atrocity 1 Azlask, the Swelling Scourge 1 Hideous Taskmaster 1 Titans' Vanguard 1 Glaring Fleshraker 1 Wastescape Battlemage 1 Snapping Voidcraw 1 Inversion Behemoth 1 Benthic Anomaly 1 Chittering Dispatcher 1 Angelic Aberration 1 Bismuth Mindrender 1 Ulamog's Dreadsire 1 Twins of Discord 1 Spawnbed Protector 1 Mutated Cultist Planeswalkers (1) Lands (38) 1 Tendo Ice Bridge 1 Brushland 1 Forest 1 Llanowar Wastes 1 Plains 1 Underground River 1 Sulfurous Springs 1 Karplusan Forest 1 Adarkar Wastes 1 Swamp 1 Mountain 1 Island 1 Yavimaya Coast 1 Shivan Reef 1 Caves of Koilos 1 Battlefield Forge 1 Exotic Orchard 1 Reliquary Tower 1 Tectonic Edge 1 Eldrazi Temple 1 Command Tower 1 Temple of Silence 1 Opal Palace 1 Temple of Malady 1 Tomb of the Spirit Dragon 1 Shrine of the Forsaken Gods 1 Spawning Bed 1 Wastes 1 Corrupted Crossroads 1 Ruins of Oran-Rief 1 Ash Barrens 1 Cascading Cataracts 1 Path of Ancestry 1 Unclaimed Territory 1 Bonders' Enclave 1 Secluded Courtyard 1 Twisted Landscape 1 Tranquil Landscape Spells (31) 1 Sol Ring 1 Talisman of Impulse 1 Talisman of Dominance 1 Crib Swap 1 Eldrazi Monument 1 Everflowing Chalice 1 All Is Dust 1 Ancient Stirrings 1 Awakening Zone 1 Dreamstone Hedron 1 Eldrazi Conscription 1 Skittering Invasion 1 Suffer the Past 1 Hedron Archive 1 Ugin's Insight 1 Kozilek's Return 1 Warping Wail 1 Imprisoned in the Moon 1 Rishkar's Expertise 1 Herald's Horn 1 Talisman of Curiosity 1 Talisman of Resilience 1 Mystic Forge 1 Arcane Signet 1 Idol of Oblivion 1 Return of the Wildspeaker 1 Garruk's Uprising 1 Forsaken Monument 1 Eldrazi Confluence 1 Eldritch Immunity 1 Selective Obliteration Modern Horizons 3 is scheduled to release on June 14

The popular characters from the Whitebeard Pirates, Animal Kingdom Pirates, and Big Mom Pirates will make their debut as brand new Leader cards