Kray-MK,The Mecha-wurm

Trample
When Kray-MK,The Mecha-wurm enters in batllefield,put X Probe creature token 1/1 on batllefield
The power and toughness is equal to the number of probes on batllefield
{2}{t}:put on batllefield a Probe token and give indestructable to Kray-MK,The Mecha-wurm until your next turn