Foundry Champion

When Foundry Champion enters, it deals damage to any target equal to the number of creatures you control.
{R}: Foundry Champion gets +1/+0 until end of turn.
{W}: Foundry Champion gets +0/+1 until end of turn.

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When Foundry Champion enters the battlefield, it deals damage to target creature or player equal to the number of creatures you control.
{R}: Foundry Champion gets +1/+0 until end of turn.
{W}: Foundry Champion gets +0/+1 until end of turn.

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The number of creatures you control is counted when Foundry Champion’s triggered ability resolves. Foundry Champion will count itself if it’s still on the battlefield under your control at that time.