Omnath, locus of infinity

Landfall -Whenever a land enter on the battlefield
choose a colour and ad 3 mana of this colour .If
you use this mana to cast a spell of this colour
copy it. You can choose others targets
Escape-{w}{u}{b}{r}{g} exile five others cards of five
different colour from your graveyard
whenever you have {w}{u}{b}{r}{g} on your mana
pool create a 5/5 elemental token of the colour of
your choice