Begganin for a hope

When this card enter the battlefield add {7} to
your mana pool.
At the end of your turn if you don't destroyed 4
permanents from your opponet you lose the game.
{6}Slow-Time-Bombim :
Remove this card from the game and add 2 time
counters on it, at the beggining of your upkeep
remove 1 time counter;
When there's no time counter left cast this card
without paying it's mana cost.