This creature enters with X +1/+1 counters on it.
It embodies all possible meanings of the word "infinite."
Illustrated by Jason Felix · Battle for Zendikar · #8
There are no rulings for Endless One.
Defender (This creature can't attack.)
: Put a +1/+1 counter on this creature.
When this creature dies, draw a card for each +1/+1 counter on it.
Reach, trample, protection from multicolored
This creature can't block.
This creature can't attack unless you pay for each +1/+1 counter on it.
, : Put a +1/+1 counter on this creature.
Remove a +1/+1 counter from this creature: It deals 1 damage to any target.