Glace and Alvin, Powerful Duo

Deathtouch, Indestuctible, Lifelink, Hexproof,Trample
{1}{t} destroy target creature
{8}{u/b}{p/u}{p/b}: all creatures you control have Deathtouch, Lifelink, Trample
when Glace and Alvin dies destroy all creatures
they are over powered