Dactylis Bio-Titan

Reach, Indestructible, Defender
Hive Mind (Whenever another tyranid enters the battlefield, you gain 1 bio counters and 1 life.)
Dactylis Bio-Titan enters the battlefield with {x} +1/+1 counters on it.
Whenever Dactylis Bio-Titan deals non-combat
damage to a permanent, put 3 +1/+1 counters
on it.
{t}, Pay {x} bio counters, and remove {x} +1/+1 counters from target creature you control : Deal {x} damage to any target