While there is definitely some mechanical overlap with Slivers in this capacity, Allies really made it a centerpiece of their identity, whereas Slivers generally focus on static benefits that affect all Slivers
Healer's Hawk Rarity: Common TYPE: Creature SUBTYPE: Bird CMC: 1 Mana cost: USD: $0.22 EUR: 0.12 TIX: 0.03 EDHREC RANK: 3817 (1/1) Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.) Healer's Hawk Rarity: Common TYPE: Creature SUBTYPE: Bird CMC: 1 Mana cost: USD: $0.25 EUR: 0.00 TIX: 0.00 EDHREC RANK: 3817 (1/1) Flying Lifelink (Damage dealt by this creature also causes you to gain that much life.) Heartfire Immolator Rarity: Uncommon TYPE: Creature SUBTYPE: Human Wizard CMC: 2 Mana cost: USD: $0.19 EUR: 0.08 TIX: 0.03 EDHREC RANK: 14223 (2/2) Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) , Sacrifice this creature: It deals damage equal to its power to target creature or planeswalker
Weatherlight Compleated puts a phyresis counter on itself when a creature you control dies, and then causes you to draw a card if it has seven or more phyresis counters on it
A quick reminder of how this will work: We're looking at each cards multiplayer effect, its power level, and whether or not its playable in a multitude of decks or just one
Seventeen lands is about the lowest you'll ever go in a "normal" deck, with 16 being the absolute floor