Righteous Raphael, the Nightwatcher
Blue is my favorite color to play in Magic, and even though creatures arent usually at the forefront of blue decks, it still has some of the most powerful creatures in the game

Advanced Search Sets Random Syntax Anurid Barkripper Anurid Brushhopper Anurid Murkdiver Anurid Scavenger Anurid Swarmsnapper Bellowing Crier Berta, Wise Extrapolator Bloated Toad Bogwater Lumaret Burrog Banemaker Burrog Befuddler Chub Toad Clement, the Worrywort Clifftop Lookout Croakid Amphibonaut Crocanura Dour Port-Mage Dreamdew Entrancer Excavating Anurid Flubs, the Fool Frog Butler Frog-Squirrels Froghemoth Frogmite Frogmyr Enforcer Galloping Lizrog Genghis Frog Gigantoad Glarb, Calamity's Augur Gorma, the Gullet Gray Slaad Grolnok, the Omnivore Halo Hopper Haze Frog Helga, Skittish Seer Hezrou Jade Avenger Leapfrog Lilysplash Mentor Long River Lurker Mistbreath Elder Morgue Toad Noxious Toad Octomancer Omnibian Papercraft Decoy Pet Avengers Plaxcaster Frogling Poison Dart Frog Pollywog Prodigy Pollywog Symbiote Pollywog Symbiote Pond Prophet Psychic Frog Punk Frogs Rampant Frogantua Skyskipper Duo Species Gorger Splash Lasher Spore Frog Spring Splasher Steeple Creeper Stickytongue Sentinel Sunshower Druid Textbook Tabulator Thalia and The Gitrog Monster The Gitrog Monster The Gitrog, Ravenous Ride Three Tree Scribe Treeguard Duo Trollbred Guardian Twenty-Toed Toad

Theres not much more to it than that, in terms of rules
They remain paired for as long as you control both of them.) As long as this creature is paired with another creature, each of those creatures gets +2/+2
I do wish that the graveyard stuff hit a lot harder, but I am happy with what we got.