Imperial Recruiter Power 2 or less might sound like a huge limitation, but Imperial Recruiter can fetch a huge swath of creatures from your library, from utility creatures to combo pieces
None of the predone cards what youre looking for
Same thing here, less is more
Animar has always been a highly versatile general that has helped to create a lot of different archetypical decks, ranging from hydra to morph tribal, before a better general could be discovered or even created from whole cloth by Wizards
For 4 mana, we get a game-ender for 2 mana cheaper than Felidar Sovereign on a white enchantment, so it's harder to remove with just a simple Doom Blade, and doesnt require we spend that 50 life to blast someone like Aetherflux Reservoir
Finally, Y'shtola, Night's Blessed represents the MMO