Rabbit token calculator for Hare Apparent.
Crunches the bunny math so your turn doesn't take 20 minutes.
Hare Apparent card text: “When Hare Apparent enters, create a 1/1 white Rabbit creature token for each other creature you control named Hare Apparent.”
Offspring {2}: “You may pay an additional {2} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.”
H — Number of other Hare Apparents already on the battlefield before entering.
C — Number of Hare Apparents entering the battlefield this turn (default 1).
T — Number of token doublers.
O — Number of token triplers.
A — Number of additional trigger effects.
R — Number of existing Rabbit tokens already on your battlefield.
D — Damage dealt to each opponent per entering creature/token.
B — Life lost by you per entering creature/token.
L — Life gained by you per entering creature/token.
The entering Hare triggers $A+1$ times. Each trigger sees $H$ other Hares and creates $H \times (3^O \cdot 2^T)$ Rabbit tokens:
$$X(H, T, A, O) = (A + 1) \cdot H \cdot (3^O \cdot 2^T)$$The entering Hare triggers $A+1$ Offspring triggers and $A+1$ Make Rabbits triggers. Offspring resolves first, creating $P = 3^O \cdot 2^T$ token copies of Hare Apparent per trigger. Each token copy triggers its own ETB, and the original Hare resolves last seeing all new token Hares:
$$X_{\text{offspring}} = \sum_{n=1}^{A+1} \left[ P^2 \cdot (H + n \cdot P) \cdot (A + 1) \right] + (A + 1) \cdot P \cdot [H + (A + 1) \cdot P]$$Each $k$-th entering Hare sees the cumulative total of existing Hares when its triggers resolve:
$$X_{seq}(H, C, T, A, O) = (A + 1) \cdot (3^O \cdot 2^T) \cdot \left[ C \cdot H + \frac{C(C - 1)}{2} \right]$$All $C$ Hares enter together (e.g. Ghostway, Patriarch's Bidding, Raise the Past). Each of the $C$ Hares has $A+1$ triggers, and every trigger sees all other $H + C - 1$ Hares:
$$X_{sim}(H, C, T, A, O) = C \cdot (A + 1) \cdot (H + C - 1) \cdot (3^O \cdot 2^T)$$Total entering creatures $E = C + \text{Offspring Hares} + X$. Every entering creature triggers damage to opponents, life lost by you, and lifegain:
$$\text{Damage to Opponents} = E \cdot D, \qquad \text{Life Lost by You} = E \cdot B, \qquad \text{Life Gained} = E \cdot L$$ $$\text{Net Life Change} = (E \cdot L) - (E \cdot B) = E \cdot (L - B)$$