How to complete Tank challenge - My way (F2P)

Kapus

Unlock Teebo from GW ( 25 shards ), upgrade his leader and first and second special to ability 3 and it's done, while he is stealthed he remove 75% turnmeter, so mace never gets a turn

Triqui

Chewie and royal can help too with this. They have 25% chance to remove TM